New energy automobile battery flexible assembly system

Abstract

A new energy automobile battery flexible assembly system comprises a transfer trolley, a lifting main machine, a floating displacement mechanism, a clamping mechanism, a controller and a control panel. The transfer trolley comprises a base, walking wheels on the base, a walking driving motor and driving wheels. The lifting main machine comprises a telescopic vertical arm and a driving device of the telescopic vertical arm. The floating displacement mechanism comprises a square fixing plate with four corners provided with first mounting holes; second mounting holes are formed in two sides; the cross-shaped swinging joint is arranged in the center of the upper end face of the fixing plate; the upper and lower ends of the four groups of spring adjusting assemblies are respectively connected with the fixed plate and the top surface of the cross-shaped swinging joint; the base is of a square frame structure, through holes are formed in the four corners of the base, and first mounting holes with center shafts connected to the four corners of the fixing plate are formed; the four floating centering units are respectively arranged in the centers of the four frames of the base; the floating fixing plate is arranged between the fixing plate and the base, four corners of the floating fixing plate are provided with through holes, and the floating fixing plate penetrates through the central shaft; the two floating locking assemblies are arranged on the two sides of the fixing plate; the clamping mechanism comprises a square fixing frame, two connecting rods are arranged in the middle of the frame in parallel, and the two sides of the bottom face of a floating fixing plate are connected to the two connecting rods. The four clamping devices are arranged on two opposite side frames of the fixed frame in pairs; the six thick guide pieces are arranged on the frames of the fixed frame respectively; and a controller and a control panel.

Description

Technical Field

[0001] The present invention relates to the fields of mechanical transfer, handling, and assembly, and particularly relates to a flexible assembly system for new energy vehicle batteries, which is especially suitable for intelligent conveying and heavy-load assembly and transfer of new energy batteries. Background Art

[0002] With the rapid development of new energy vehicles, people have higher requirements for automobiles, with better performance and more beautiful and dynamic appearance. The personalized needs are ever-changing, leading to a gradual shift in consumption tendency towards individuality and diversity. The production characteristics of new energy vehicle battery assembly are becoming more complex. Bottlenecks in the assembly and docking of new energy vehicle batteries of different specifications and models must be broken through and innovated on the basis of existing processes.

[0003] In the automated assembly process of existing technologies, material transfer is often required. During the transfer and conveying process, due to the offset of materials, there are safety risks and product quality risks such as material blockage, out-of-bounds, and collision, especially for the transfer, conveying, and assembly of materials weighing more than 500 kilograms.

[0004] In the automated assembly process of existing technologies, in the case of meeting high-precision and accurate displacement alignment, there are many difficulties and inconveniences in the machine adjustment process and the alignment position. The heavier the assembled product or material, the greater the difficulty in aligning the displacement. At the same time, there are certain risks and quality hidden dangers in the stability of lifting or moving the product and the deviation of alignment.

[0005] In the assembly process of existing technologies, due to the alignment requirements of the suspended items, there are often swings and imbalances in the direction, seriously affecting the assembly efficiency and quality of the product. In the assembly process of heavy-load items, instability is extremely likely to occur. If the situation of imbalance and overload occurs, there are serious safety risks and quality hidden dangers. Summary of the Invention

[0006] The purpose of the present invention is to design a flexible assembly system for new energy vehicle batteries, solve the problems of new energy vehicle battery assembly, ensure the continuous and stable operation of the new energy vehicle battery production assembly line; solve the offset bottleneck in the process of new energy vehicle battery conveying, ensure that the battery is not skewed and arranged neatly during the conveying and assembly process; solve the bottlenecks such as positioning deviation and displacement difficulty in the process of new energy vehicle battery assembly, ensure floating displacement, automatic alignment, time-saving and labor-saving, and accurate positioning; solve the problems of battery swing and tilt in the process of new energy vehicle battery, improve material balance, and ensure stable and reliable material assembly process; solve the assembly of new energy vehicle batteries of different specifications and models, and ensure flexible assembly and docking of batteries with different model specifications.

[0007] To achieve the above object, the technical solution of the present invention is:

[0008] A flexible assembly system for a new energy vehicle battery, which includes a transfer cart, a lifting mainframe, a floating displacement mechanism, a clamping mechanism, a controller and a control panel; among them,

[0009] The transfer cart mentioned above includes:

[0010] A base, which is a frame structure, with a substrate in the center, and walking wheels that can run on the walking track are provided at both ends of the upper end surfaces of the two side frames of the frame structure;

[0011] A walking drive motor is arranged on one side of the frame structure of the base, and a drive wheel that cooperates with the walking track is provided at the output end thereof;

[0012] The lifting mainframe includes a telescopic vertical arm and its driving device; the upper end of the telescopic vertical arm is fixed in the center of the substrate of the base; preferably, a plurality of position sensors are arranged along the height direction of the telescopic vertical arm;

[0013] The floating displacement mechanism includes,

[0014] A fixing plate, which is square, and has first mounting holes at its four corners; second mounting holes are symmetrically arranged on both sides of the fixing plate;

[0015] A cross swing joint is arranged in the center of the upper end surface of the fixing plate; a lifting ring is arranged in the center of the top surface of the cross swing joint;

[0016] Four groups of spring adjustment components are symmetrically arranged around the cross swing joint, and their upper and lower ends are respectively connected to the fixing plate and the top plate formed by the extension of the top surface of the cross swing joint;

[0017] A base, which is a square frame structure, has through holes at its four corners, and center shafts are respectively arranged and connected to the first mounting holes at the four corners of the fixing plate;

[0018] Four floating centering units are respectively arranged in the center of the upper end surfaces of the four side frames of the base frame structure; the floating centering units are driven by cylinders;

[0019] A floating fixing plate is arranged between the fixing plate and the base and abuts against the four floating centering units; through holes are provided at the four corners of the floating fixing plate and are penetrated by the center shafts; the diameter of the through holes is larger than the diameter of the center shafts, and the floating fixing plate realizes floating in this way;

[0020] Two floating locking components are symmetrically arranged on both sides of the upper end surface of the fixing plate, corresponding to the second mounting holes. The floating locking components include:

[0021] A locking cylinder, whose cylinder body is vertically arranged on the fixing plate, and its piston rod passes through the second mounting hole;

[0022] A locking piece is installed at the end of the piston rod;

[0023] The locking sleeve is fixed on the floating fixed plate, and the locking member is nested with the locking sleeve;

[0024] The clamping mechanism includes

[0025] A fixed frame, which is a square frame. Two connecting rods are arranged in parallel in the middle of the frame. The two sides of the bottom surface of the floating fixed plate are connected to the two connecting rods;

[0026] Four clamping devices, which are arranged in pairs on the opposite two side frames of the fixed frame;

[0027] Six rough guiding members, two of which are symmetrically arranged at the center of the two side frames of the fixed frame where the clamping devices are installed, and the other four rough guiding members are arranged in pairs on the other two side frames of the fixed frame where no clamping devices are installed through a support frame; Preferably, the distance between the two rough guiding members on one side frame is greater than the distance between the two rough guiding members on the other side frame;

[0028] A controller and a control panel, which are connected to the telescopic vertical arm of the lifting main unit through a bracket; The traveling drive motor, the drive device of the lifting main unit, the position sensor, the floating centering unit, and the locking cylinder of the floating locking assembly are respectively connected to the controller.

[0029] Furthermore, it further includes two first positioning components, and / or, two second positioning components, and / or, two workpiece detection components; Among them,

[0030] Two first positioning components are arranged on the two side frames of the fixed frame where the clamping devices are installed, on one side of the clamping devices; The first positioning component includes

[0031] A first positioning pin, which is a telescopic structure and is arranged on the outer side of the side frame of the fixed frame through a connecting member;

[0032] A first proximity switch is arranged on the upper part of the connecting member and is matched with the top of the telescopic member of the telescopic structure of the first positioning pin;

[0033] Two second positioning components are arranged on the two side frames of the fixed frame where the clamping devices are installed, on one side of the first positioning components and closer to the side frame than the first positioning components; The second positioning component includes

[0034] A second positioning pin, which is a telescopic structure and is arranged on the outer side of the side frame of the fixed frame through a second connecting member;

[0035] A second proximity switch is arranged on the upper part of the second connecting member and is matched with the top of the telescopic member of the telescopic structure of the second positioning pin;

[0036] Two workpiece detection components are symmetrically arranged in the middle of the two side frames of the fixed frame where the clamping devices are installed; The workpiece detection component includes

[0037] The workpiece detection pin is a telescopic structure and is arranged outside the frame of the fixed frame through a third connecting member;

[0038] The third proximity switch is arranged on the upper part of the third connecting member and cooperates with the top of the telescopic member of the telescopic structure of the workpiece detection pin;

[0039] The first to third proximity switches are respectively connected to the controller.

[0040] Furthermore, it further includes two center-of-gravity adjustment components, which are arranged on the floating displacement mechanism and are arranged at 90 degrees; the center-of-gravity adjustment components include,

[0041] The upper frame and the lower frame are arranged parallel to each other up and down, and respectively include a fixed substrate and support rods on both sides of the upper end surface; the rear parts of the upper and lower frames are respectively connected to the top surface of the cross swing joint and the fixed plate of the floating displacement mechanism;

[0042] The floating cylinder has its cylinder body vertically arranged on the outer end side of the bottom surface of the fixed substrate of the upper frame, and a floating top block is arranged at the end of its piston rod; correspondingly, a limit block cooperating with the floating top block is arranged on the outer end side of the upper end surface of the fixed substrate of the lower frame; the floating cylinder is connected to the controller.

[0043] Preferably, the spring adjustment component of the floating displacement mechanism includes a spring adjustment rod arranged on a bottom plate, a spring sleeved on the spring adjustment rod, and an adjustment nut arranged at the upper end of the spring; the bottom plate is fixed on the fixed plate; the upper part of the spring adjustment rod passes through the top plate formed by extending the top surface of the cross swing joint.

[0044] Preferably, the floating displacement mechanism further includes four limit components, which are symmetrically arranged at the centers of the four sides of the upper end surface of the floating fixed plate respectively; the limit component includes:

[0045] The limit seat is arranged on the upper end surface of the floating fixed plate, and a screw hole is arranged on its upper part;

[0046] The adjusting bolt passes through the screw hole in the upper part of the limit seat, and its end corresponds to the side part of the fixed plate.

[0047] Preferably, the floating displacement mechanism further includes eight sliding components, which are arranged in pairs on the four side parts of the fixed plate. Correspondingly, two installation through holes are arranged on each of the four side parts of the fixed plate; the sliding component includes a fixing bolt arranged in the installation through hole, and a ball is arranged at the lower end of the fixing bolt. Correspondingly, a ball tray is arranged on the floating fixed plate.

[0048] Preferably, the cross swing joint includes:

[0049] The upper connecting seat is composed of an upper connecting plate and upper support blocks protruding from both sides of the middle part of the bottom surface of the upper connecting plate; shaft holes are arranged on the upper support blocks;

[0050] Lower connecting seat, which is composed of a lower connecting plate, lower support blocks protruding from both sides of the middle of the top surface of the lower connecting plate, and a connecting base arranged on the bottom surface of the lower connecting plate; shaft holes are provided on the lower support blocks; four connecting holes are evenly arranged on the lower connecting plate along the circumferential direction;

[0051] Connecting shaft block, which is a cuboid structure, and has a cross-shaped through connecting shaft hole thereon; the connecting shaft block is arranged in the center of the lower connecting plate of the lower connecting seat, and the two lower support blocks on the lower connecting plate are pivotally connected to both sides of the connecting shaft block by a long shaft passing through the connecting shaft hole of the connecting shaft block;

[0052] The upper support block of the upper connecting seat is pivotally connected to the other two sides of the connecting shaft block by two short shafts.

[0053] Preferably, it further includes a scanner or a camera, which is arranged on one side frame of the fixed frame provided with the clamp.

[0054] Preferably, the floating centering unit adopts the MACM series products of SMC (China) Co., Ltd.

[0055] Compared with the prior art, the advantages of the present invention are as follows:

[0056] Through the cooperation of the floating displacement mechanism and the clamping mechanism, the present invention solves the bottlenecks such as positioning deviation and displacement difficulty in the assembly process of new energy vehicle batteries, ensures floating displacement, automatic alignment, saves time and effort, and has precise positioning; it also solves the problems such as battery swing and tilt in the process of new energy vehicle batteries, ensures that the batteries are not skewed during the conveying and assembly process, and are arranged neatly; it improves material balance and ensures stable and reliable material assembly process;

[0057] In addition, through the design of the floating displacement mechanism, the assembly of new energy vehicle batteries with different specifications and models is also solved, ensuring flexible assembly and docking of batteries with different specifications and models.

[0058] The present invention solves the problems of new energy vehicle battery assembly, improves the offset and positioning deviation in the heavy-load conveying process, improves the automation level of item assembly, eliminates the safety risks and product quality risks of material blockage, out-of-bounds and collision during the material conveying process, saves energy and reduces consumption, realizes high-precision and accurate displacement alignment during the material conveying and assembly process, ensures that the product conveying is not skewed, does not shake, is stable and reliable, and is balanced and docked, ensures the continuous and stable operation of the new energy vehicle battery production and assembly line, improves the product assembly quality effect, reduces costs, and improves quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 is a three-dimensional view of an embodiment of the present invention Figure 1 ;

[0060] Figure 2 is a three-dimensional view of an embodiment of the present inventionFigure 2 ;

[0061] Figure 3 is the three - dimensional view of the clamping mechanism in the embodiment of the present invention; Figure 1 ;

[0062] Figure 4 is the three - dimensional view of the clamping mechanism in the embodiment of the present invention; Figure 2 ;

[0063] Figure 5 is the top - view of the clamping mechanism in the embodiment of the present invention;

[0064] Figure 6 is the three - dimensional view of the floating displacement mechanism in the embodiment of the present invention; Figure 1 ;

[0065] Figure 7 is the three - dimensional view of the floating displacement mechanism in the embodiment of the present invention; Figure 2 ;

[0066] Figure 8 is the top - view of the floating displacement mechanism in the embodiment of the present invention;

[0067] Figure 9 is Figure 8 the A - A sectional view of;

[0068] Figure 10 is Figure 8 the B - B sectional view of;

[0069] Figure 11 is Figure 8 the C - C sectional view of. Detailed implementation manners

[0070] Referring to Figures 1 to 11 , the new - energy vehicle battery flexible assembly system of the present invention includes a transfer trolley 10, a lifting main unit 20, a floating displacement mechanism 30, a clamping mechanism 40, a controller and a control panel 50; wherein,

[0071] The transfer trolley 10 includes:

[0072] A base 1, which is a frame structure, with a base plate 101 in the center thereof, and traveling wheels 2 that can run on a traveling track are provided at both ends of the upper end faces of the two side frames of the frame structure;

[0073] A traveling drive motor 3 is disposed on one side of the frame structure of the base 1, and a drive wheel that cooperates with the traveling track is provided at its output end;

[0074] The lifting main unit 20 includes a telescopic vertical arm 4 and its driving device; the upper end of the telescopic vertical arm 4 is fixed at the center of the base plate 101 of the base 1; preferably, a plurality of position sensors 41 are arranged along the height direction of the telescopic vertical arm 4;

[0075] The floating displacement mechanism 30 includes

[0076] The fixed plate 5 is square, and first mounting holes 51 are provided at its four corners; second mounting holes 52 are symmetrically provided on two sides of the fixed plate 5;

[0077] The cross swing joint 6 is arranged at the center of the upper end surface of the fixed plate 1; a lifting ring 61 is provided at the center of the top surface of the cross swing joint 6;

[0078] Four groups of spring adjustment components 7 are symmetrically arranged around the cross swing joint 6, and their upper and lower ends are respectively connected to the fixed plate 5 and the top plate formed by the extension of the top surface of the cross swing joint 6;

[0079] The base 8 is a square frame structure, through holes 81 are provided at its four corners, and a central shaft 25 is respectively provided and connected to the first mounting holes 51 at the four corners of the fixed plate 5;

[0080] Four floating centering units 9 are respectively arranged at the center of the upper end surfaces of the four side frames of the base 8 frame structure; the floating centering unit 9 is driven by a cylinder;

[0081] The floating fixed plate 11 is arranged between the fixed plate 5 and the base 8 and abuts against the four floating centering units 9; through holes 111 are provided at the four corners of the floating fixed plate 11 and are penetrated by the central shaft 25; the diameter of this through hole is larger than the diameter of the central shaft 25, and the floating fixed plate 11 realizes floating in this way;

[0082] Two floating locking components 12 are symmetrically arranged on both sides of the upper end surface of the fixed plate 5, corresponding to the second mounting holes 52. The floating locking component 12 includes:

[0083] The locking cylinder 121, its cylinder body is vertically arranged on the fixed plate 5, and its piston rod passes through the second mounting hole 52;

[0084] The locking piece 122 is installed at the end of the piston rod;

[0085] The locking sleeve 123 is fixed on the floating fixed plate 11, and the locking piece 122 and the locking sleeve 123 are in nested fit;

[0086] The clamping mechanism 40 includes

[0087] The fixed frame 13 is a square frame. Two connecting rods 131 are arranged in parallel in the middle of the frame. The two sides of the bottom surface of the floating fixed plate 11 are connected to the two connecting rods 131;

[0088] Four clamping devices 14 are arranged in pairs on two opposite side frames of the fixed frame 13;

[0089] Six thick guide members 15, two of which are symmetrically arranged at the centers of the two side frames of the fixed frame 13 where the clamp 14 is provided, and the other four thick guide members are arranged in pairs on the other two side frames of the fixed frame 13 where the clamp 14 is not provided through the support frame 132; preferably, the distance between the two thick guide members on one side frame is greater than the distance between the two thick guide members on the other side frame;

[0090] A controller and a control panel 16, which are connected to the telescopic vertical arm 3 of the lifting main unit 20 through a bracket; the traveling drive motor, the drive device of the lifting main unit, the position sensor, the floating centering unit, and the locking cylinder of the floating locking assembly are respectively connected to the controller.

[0091] Furthermore, it further includes two first positioning components 17, and / or, two second positioning components 18, and / or, two workpiece detection components 19; wherein,

[0092] Two first positioning components 17 are arranged on the two side frames of the fixed frame 13 where the clamp 14 is provided, on one side of the clamp 14; the first positioning component 17 includes,

[0093] A first positioning pin 171, which is a telescopic structure and is arranged outside the side frame of the fixed frame 13 through a connecting member 172;

[0094] A first proximity switch 173 is arranged on the upper part of the connecting member 172 and cooperates with the top of the telescopic member of the telescopic structure of the first positioning pin 171;

[0095] Two second positioning components 18 are arranged on the two side frames of the fixed frame 13 where the clamp 14 is provided, on one side of the first positioning component 17 and closer to the side frame than the first positioning component 17; the second positioning component 18 includes,

[0096] A second positioning pin 181, which is a telescopic structure and is arranged outside the side frame of the fixed frame 13 through a second connecting member 182;

[0097] A second proximity switch 183 is arranged on the upper part of the second connecting member 182 and cooperates with the top of the telescopic member of the telescopic structure of the second positioning pin 181;

[0098] Two workpiece detection components 19 are symmetrically arranged in the middle of the two side frames of the fixed frame 13 where the clamp 14 is provided; the workpiece detection component 19 includes,

[0099] A workpiece detection pin 191, which is a telescopic structure and is arranged outside the side frame of the fixed frame 13 through a third connecting member 192;

[0100] A third proximity switch 193 is arranged on the upper part of the third connecting member 192 and cooperates with the top of the telescopic member of the telescopic structure of the workpiece detection pin 193;

[0101] The first to third proximity switches are respectively connected to the controller.

[0102] Furthermore, it further includes a two-center adjustment component 21, which is arranged on the floating displacement mechanism 30 and is arranged at 90 degrees; the center adjustment component 21 includes,

[0103] An upper frame 211 and a lower frame 212, which are arranged parallel to each other up and down, respectively include fixed substrates 2111 and 2121 and support rods 2112 and 2122 on both sides of their upper end faces; the rear parts of the upper and lower frames 211 and 212 are respectively connected to the top surface of the cross swing joint 6 and the fixed plate 5 of the floating displacement mechanism 30;

[0104] A floating cylinder 213, whose cylinder body is vertically arranged on the outer end side of the bottom surface of the fixed substrate 2111 of the upper frame 211, and a floating top block 214 is arranged at the end of its piston rod; correspondingly, a limit block 215 that cooperates with the floating top block 214 is arranged on the outer end side of the upper end surface of the fixed substrate 2121 of the lower frame 212; the floating cylinder is connected to the controller.

[0105] Preferably, the spring adjustment component 7 of the floating displacement mechanism 30 includes a spring adjustment rod 72 arranged on a bottom plate 71, a spring 73 sleeved on the spring adjustment rod 72, and an adjustment nut 74 arranged at the upper end of the spring 73; the bottom plate 71 is fixed on the fixed plate 5; the upper part of the spring adjustment rod 72 passes through the top plate formed by extending the top surface of the cross swing joint 6.

[0106] Preferably, the floating displacement mechanism 30 further includes four limit components 22, which are symmetrically arranged at the centers of the four sides of the upper end surface of the floating fixed plate 11 respectively; the limit component 22 includes:

[0107] A limit seat 221, which is arranged on the upper end surface of the floating fixed plate 11, and a screw hole is arranged on its upper part;

[0108] An adjusting bolt 222, which passes through the screw hole in the upper part of the limit seat 221, and its end corresponds to the side part of the fixed plate 5.

[0109] Preferably, the floating displacement mechanism 30 further includes eight sliding components 23, which are arranged in pairs on the four side parts of the fixed plate 5. Correspondingly, two installation through holes 53 are arranged on each of the four side parts of the fixed plate 5; the sliding component 23 includes a fixing bolt 231, which is arranged in the installation through hole 53, and a ball 232 is arranged at the lower end of the fixing bolt 231. Correspondingly, a ball tray 233 is arranged on the floating fixed plate 11.

[0110] Preferably, the cross swing joint 6 includes:

[0111] The upper connecting seat 62 is composed of an upper connecting plate and upper support blocks protruding from both sides of the middle part of the bottom surface of the upper connecting plate; shaft holes are provided on the upper support blocks; the lifting ring 61 is connected to the center of the top surface of the upper connecting plate; the upper part of the spring adjusting rod 72 passes through one side of the upper connecting plate; the upper connecting plate is also the top plate formed by extending the top surface of the cross swing joint 6.

[0112] The lower connecting seat 63 is composed of a lower connecting plate, lower support blocks protruding from both sides of the middle part of the top surface of the lower connecting plate, and a connecting base arranged on the bottom surface of the lower connecting plate; shaft holes are provided on the lower support blocks 63; four connecting holes are evenly arranged along the circumferential direction on the lower connecting plate; the top surface of the lower connecting plate is connected to the fixing plate 5.

[0113] The connecting shaft block 64 has a cube structure, and a cross-shaped through connecting shaft hole is provided thereon; the connecting shaft block 64 is arranged at the center of the lower connecting plate of the lower connecting seat 63, and the two lower support blocks on the lower connecting plate are pivotally connected to both sides of the connecting shaft block 64 through a long shaft 65 passing through the connecting shaft hole of the connecting shaft block 64; the upper support blocks of the upper connecting seat 62 are pivotally connected to the other two sides of the connecting shaft block 64 through two short shafts 66.

[0114] Preferably, it further includes a scanner or a camera 24, which is arranged on one side frame of the fixed frame 13 provided with the clamp.

[0115] Preferably, the floating centering unit adopts the MACM series products of SMC (China) Co., Ltd.

Claims

1. A flexible assembly system for new energy vehicle batteries, comprising a transfer trolley, a lifting main unit, a controller and a control panel; characterized in that, It also includes a floating displacement mechanism and a clamping mechanism; among them, the transfer cart described above includes: a base, which is a frame structure, with a substrate provided in the center, and traveling wheels that can run on the traveling track are provided at both ends of the upper end surfaces of the two side frames of the frame structure; a traveling drive motor, which is arranged on one side of the frame structure of the base, and a drive wheel that cooperates with the traveling track is provided at the output end thereof; the lifting main unit includes a telescopic vertical arm and its driving device; the upper end of the telescopic vertical arm is fixed to the center of the substrate of the base; preferably, a plurality of position sensors are arranged along the height direction of the telescopic vertical arm; the floating displacement mechanism includes a fixing plate, which is square, and first mounting holes are provided at its four corners; second mounting holes are symmetrically provided on both sides of the fixing plate; a cross swing joint, which is arranged at the center of the upper end surface of the fixing plate; a lifting ring is provided at the center of the top surface of the cross swing joint; four groups of spring adjusting components, which are symmetrically arranged around the cross swing joint, and their upper and lower ends are respectively connected to the fixing plate and a top plate formed by extending the top surface of the cross swing joint; a base, which is a square frame structure, with through holes provided at its four corners, and central shafts are respectively provided and connected to the first mounting holes at the four corners of the fixing plate; four floating centering units, which are respectively arranged at the centers of the upper end surfaces of the four side frames of the base frame structure; the floating centering units are driven by cylinders; a floating fixing plate, which is arranged between the fixing plate and the base and abuts against the four floating centering units; through holes are provided at the four corners of the floating fixing plate and are passed through the central shafts; the diameter of the through holes is larger than the diameter of the central shafts, and the floating fixing plate realizes floating in this way; two floating locking components, which are symmetrically arranged on both sides of the upper end surface of the fixing plate, corresponding to the second mounting holes, and the floating locking components include: a locking cylinder, whose cylinder body is vertically arranged on the fixing plate, and its piston rod passes through the second mounting hole; a locking piece, which is installed at the end of the piston rod; a locking sleeve, which is fixed on the floating fixing plate, and the locking piece and the locking sleeve are nested and matched; the clamping mechanism includes a fixed frame, which is a square frame, and two connecting rods are arranged in parallel in the middle of the frame, and both sides of the bottom surface of the floating fixing plate are connected to the two connecting rods; four clamping devices, which are arranged in pairs on two opposite side frames of the fixed frame; six thick guiding members, two of which are symmetrically arranged at the centers of the two side frames of the fixed frame where the clamping devices are provided, and the other four thick guiding members are arranged in pairs on the other two side frames of the fixed frame where no clamping devices are provided through a support frame; preferably, the distance between the two thick guiding members on one side frame is greater than the distance between the two thick guiding members on the other side frame; a controller and a control panel, which are connected to the telescopic vertical arm of the lifting main unit through a bracket; the traveling drive motor, the driving device of the lifting main unit, the position sensor, the floating centering unit, and the locking cylinder of the floating locking component are respectively connected to the controller.

2. The flexible assembly system for new energy vehicle batteries according to claim 1, wherein It also includes two first positioning components, and / or, two second positioning components, and / or, two workpiece detection components; among them, the two first positioning components are arranged on two side frames of the fixed frame where the clamping devices are provided, on one side of the clamping devices; the first positioning component includes a first positioning pin, which is a telescopic structure and is arranged outside the side frame of the fixed frame through a connecting member; The first proximity switch is arranged on the upper part of the connecting piece and cooperates with the top of the telescopic part of the telescopic structure of the first positioning pin; Two second positioning components are arranged on both side frames of the clamping device on the fixed frame, on one side of the first positioning component and closer to the side frame than the first positioning component; the second positioning component includes The second positioning pin, which is a telescopic structure, is arranged on the outer side of the side frame of the fixed frame through a second connecting piece; The second proximity switch is arranged on the upper part of the second connecting piece and cooperates with the top of the telescopic part of the telescopic structure of the second positioning pin; Two workpiece detection components are symmetrically arranged in the middle of both side frames of the clamping device on the fixed frame; the workpiece detection component includes The workpiece detection pin, which is a telescopic structure, is arranged on the outer side of the side frame of the fixed frame through a third connecting piece; The third proximity switch is arranged on the upper part of the third connecting piece and cooperates with the top of the telescopic part of the telescopic structure of the workpiece detection pin; The first to third proximity switches are respectively connected to the controller.

3. The flexible assembly system for new energy vehicle batteries according to claim 1, characterized in that It further includes two center of gravity adjustment components, which are arranged on the floating displacement mechanism and are arranged at 90 degrees; the center of gravity adjustment component includes The upper frame and the lower frame are arranged parallel to each other up and down, and respectively include a fixed substrate and support rods on both sides of the upper end surface; the rear parts of the upper and lower frames are respectively connected to the top surface of the cross swing joint and the fixed plate of the floating displacement mechanism; The floating cylinder has its cylinder body vertically arranged on the outer end side of the bottom surface of the fixed substrate of the upper frame, and a floating top block is arranged at the end of its piston rod; correspondingly, a limit block cooperating with the floating top block is arranged on the outer end side of the upper end surface of the fixed substrate of the lower frame; the floating cylinder is connected to the controller.

4. The flexible assembly system for new energy vehicle batteries according to claim 1, wherein The spring adjustment component of the floating displacement mechanism includes a spring adjustment rod arranged on a bottom plate, a spring sleeved on the spring adjustment rod, and an adjustment nut arranged at the upper end of the spring; the bottom plate is fixed on the fixed plate; the upper part of the spring adjustment rod passes through the top plate formed by extending the top surface of the cross swing joint.

5. The flexible assembly system for new energy vehicle batteries according to claim 2, characterized in that, The floating displacement mechanism further includes four limit components, which are symmetrically arranged at the centers of the four sides of the upper end surface of the floating fixed plate respectively; the limit component includes: The limit seat is arranged on the upper end surface of the floating fixed plate, and a screw hole is arranged on its upper part; The adjustment bolt passes through the screw hole on the upper part of the limit seat, and its end corresponds to the side part of the fixed plate.

6. The flexible assembly system for new energy vehicle batteries according to claim 2 or 3, characterized in that, The floating displacement mechanism further includes eight sliding components, which are arranged in pairs on the four side parts of the fixed plate. Correspondingly, two installation through holes are arranged on each of the four side parts of the fixed plate; the sliding component includes a fixed bolt arranged in the installation through hole, and a ball is arranged at the lower end of the fixed bolt. Correspondingly, a ball tray is arranged on the floating fixed plate.

7. The flexible assembly system for new energy vehicle batteries according to claim 1, characterized in that, It further includes a scanner or a camera, which is arranged on one side frame of the fixed frame provided with the clamping device and is electrically connected to the controller.

8. The flexible assembly system for new energy vehicle batteries according to claim 1, wherein, The cross swing joint includes: The upper connecting seat is composed of an upper connecting plate and upper support blocks protruding from both sides of the middle of the bottom surface of the upper connecting plate; shaft holes are arranged on the upper support blocks; The lower connecting seat is composed of a lower connecting plate, lower support blocks protruding from both sides of the middle of the top surface of the lower connecting plate, and a connecting base arranged on the bottom surface of the lower connecting plate; shaft holes are arranged on the lower support blocks; four connecting holes are arranged on the lower connecting plate along the circumferential direction; The connecting shaft block is a cuboid structure with a cross-shaped and through connecting shaft hole provided thereon; the connecting shaft block is arranged at the center of the lower connecting plate of the lower connecting seat, and two lower support blocks on the lower connecting plate are pivotally connected to both sides of the connecting shaft block by a long shaft passing through the connecting shaft hole of the connecting shaft block; the upper support block of the upper connecting seat is pivotally connected to the other two sides of the connecting shaft block by two short shafts.

9. The flexible assembly system for new energy vehicle batteries according to claim 1, characterized in that The floating centering unit adopts the MACM series products of SMC (China) Co., Ltd.

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