Fully automatic integrated assembly robot for lithium battery caps

Abstract

A fully automatic integrated assembly robot for lithium battery caps comprises a base frame, a work frame arranged on the base frame, a plurality of functional mechanisms arranged on the side of the work frame in sequence according to the assembly process, and a program controller for controlling sequential execution, wherein the work frame comprises a plurality of working units, and the plurality of working units are distributed along corresponding front and rear straight lines, each working unit comprises a workbench fixed on the base frame, and a conveying mechanism located below the workbench, the workbench has at least one conveying channel extending in the front and rear directions, and a plurality of station slots for storing processing components are evenly distributed on the upper part of the conveying channel, the conveying mechanism comprises a conveying frame located below the workbench, and a conveying frame driving device for controlling the conveying frame to rise, move backward, descend, and move forward and reset, and a plurality of material handling suction cups are evenly fixed upward on the conveying frame along the corresponding conveying channel directions, when the conveying frame rises, the material handling suction cups extend out of the corresponding station slots and then move backward, and then descend and move forward and reset after reaching the next station slots.

Description

Technical Field

[0001] The invention relates to a fully automatic integrated assembly robot for lithium battery caps. Background Art

[0002] It is generally known in the industry that the cap is the core component of cylindrical lithium-ion batteries and is related to the safety of cylindrical lithium-ion batteries. The caps of cylindrical lithium-ion batteries currently sold widely on the market are usually composed of five components: explosion-proof disc, top cover, orifice plate (aluminum sheet), orifice plate gasket and sealing ring. The assembly relationship of these five components is as follows: 1. The orifice plate gasket is placed on the bottom surface of the explosion-proof disc, and the orifice plate (aluminum sheet) is placed on the orifice plate gasket and welded to the bottom surface of the explosion-proof disc; 2. The top cover is welded and fixed to the top surface of the explosion-proof disc; 3. The sealing ring is placed on the periphery of the other four components and pressed and fixed together with these four components.

[0003] In actual assembly production, the components of the cap need to be stacked and assembled in sequence, and then welded and pressed in sequence. In addition, since welding needs to be performed on both sides of the explosion-proof disk 1, the explosion-proof disk 1 needs to be turned over, and a detection device needs to be used for qualification detection. The entire assembly production process has many steps and the operation is cumbersome.

[0004] Traditionally, cap assembly stacking and transfer are accomplished manually, but manual work is obviously inefficient and labor-intensive, with a high rate of misoperation, which results in a decrease in product yield.

[0005] Of course, there are also automated equipment to automatically assemble and produce caps. For example, the automatic assembly device for cylindrical lithium-ion battery caps disclosed in patent publication number CN110253142A. It includes a cap assembly annular conveying mechanism and an explosion-proof plate feeding mechanism, a top cover feeding mechanism, a first laser welding machine, a flipping mechanism, a hole plate gasket feeding mechanism, a hole plate feeding mechanism, a second laser welding machine, a sealing ring feeding mechanism and a pressing mechanism that are arranged around the cap assembly annular conveying mechanism and in sequence along the mechanism transmission direction; it also includes a PLC controller that is electrically connected to the above-mentioned first and second laser welding machines and other mechanisms. It can automatically complete the assembly and production of caps. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a fully automatic integrated assembly machine for lithium battery caps.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fully automatic integrated assembly robot for lithium battery caps, comprising a base frame, a work frame arranged on the base frame, a plurality of functional mechanisms arranged on the side of the work frame in sequence according to the assembly process, and a program controller for controlling sequential execution, the work frame comprising a plurality of working units, and the plurality of working units are distributed along the front and rear corresponding straight lines, each working unit comprises a workbench fixed on the base frame, and a conveying mechanism located below the workbench, the workbench has at least one conveying channel extending in the front and rear directions, and a plurality of station slots for storing processing components are evenly distributed on the upper part of the conveying channel, the conveying mechanism comprises a conveying frame located below the workbench, and a conveying frame driving device for controlling the conveying frame to rise, move backward, descend, and move forward and reset, and a plurality of material handling suction cups are evenly fixed upward on the conveying frame along the corresponding conveying channel direction, when the conveying frame rises, the material handling suction cups extend out of the corresponding station slots and then move backward, and then descend and move forward and reset after reaching the next station slot;

[0008] Each two adjacent working units are directly butted end to end, or are transitionally connected in the middle through a transport robot and / or a work auxiliary frame. The work auxiliary frame has an auxiliary frame channel corresponding to the transport channels on the front and rear workbenches, and a work station slot is arranged on the upper part of each auxiliary frame channel.

[0009] In certain embodiments, the transport frame driving device includes a conveying base frame fixed on the base frame, an intermediate frame slidably arranged on the conveying base frame along the up and down vertical directions, the transport frame is slidably arranged on the intermediate frame along the front and back horizontal directions, an up and down driving mechanism is arranged between the intermediate frame and the conveying base frame, and a front and back driving mechanism is arranged between the transport frame and the intermediate frame.

[0010] In certain embodiments, the up and down driving mechanism includes a cam pivotally connected to the conveying base frame and controlled by an up and down driving motor, and a roller pivotally connected to the intermediate frame, and the outer contour of the roller is always in conflict with the outer contour of the cam; the front and rear driving mechanism includes a lead screw arranged on the intermediate frame, and front and rear driving motors for driving the lead screw, and the transport frame is connected to the lead screw.

[0011] In some embodiments, a conveying pressure plate is slidably arranged on the workbench in the front-to-back direction, and the conveying pressure plate is connected to the transport frame through an up and down telescopic mechanism. A plurality of pressure covers are fixed downward on the conveying pressure plate corresponding to the work station slots, and each of the pressure covers corresponds downward to the corresponding material handling suction cup.

[0012] In certain embodiments, the left and right widths of the material handling suction cup and the handling channel are respectively smaller than the left and right widths of the processing component.

[0013] In certain embodiments, the handling robot includes a flip seat arranged on the base frame for sliding back and forth, a flip power device arranged on the flip seat, and a flip arm fixed on the output shaft of the flip power device, the flip arm having at least one radially outwardly extending claw with a material grabbing suction cup, each of the claws corresponding to the handling channel of the workbench on two adjacent sides, and the center line of the flip arm is horizontally arranged left and right and coincides with the center line of the output shaft of the flip power device.

[0014] In certain embodiments, the functional mechanisms include, in order according to the assembly process: a No. 1 conveying device that feeds components into the corresponding work station slot, a No. 3 conveying device that feeds components into the corresponding work station slot, a No. 4 conveying device that feeds components into the corresponding work station slot, a No. 1 welding mechanism that welds the three-layer components in the corresponding work station slot together, the handling robot that flips the semi-finished product 180°, a No. 2 conveying device that feeds components into the corresponding work station slot, a No. 2 welding mechanism that welds the four-layer components in the corresponding work station slot together, a height inspection mechanism that performs height inspection on the semi-finished products in the corresponding work station slot, a resistance inspection mechanism that performs resistance inspection on the semi-finished products in the corresponding work station slot, a high NG conveying device that transfers semi-finished products with unqualified height in the corresponding work station slot, an electric NG conveying device that transfers semi-finished products with unqualified resistance in the corresponding work station slot, the handling robot that flips the semi-finished product 180° again, a No. 5 conveying device that feeds components into the corresponding work station slot, and a pressing device that buckles the semi-finished products and components in the corresponding work station slot together.

[0015] In certain embodiments, the No. 3 conveyor device, the No. 4 conveyor device, the No. 2 conveyor device, the high NG conveyor device, the electric NG conveyor device, and the No. 5 conveyor device have the same structure, and all include a conveying seat fixed on the base frame, a rotating arm whose one side is rotatably connected to the conveying seat through a conveying shaft extending in a vertical direction, and a material picking rack is connected downwardly to the other side of the rotating arm through a lifting mechanism, and at least one material picking suction cup is fixed downwardly on the material picking rack, and each of the material picking suction cups corresponds to one of the transport channels.

[0016] In some embodiments, the first welding mechanism and the second welding mechanism have the same structure, and each comprises:

[0017] a first laser oscillator for emitting a first laser beam;

[0018] a second laser oscillator for emitting a second laser beam;

[0019] a first scanner for receiving a first laser beam emitted by a first laser oscillator and reflecting the incident first laser beam;

[0020] a second scanner for receiving a second laser beam emitted by a second laser oscillator and reflecting the incident second laser beam;

[0021] A scanning lens, for receiving the reflected light from the first scanner and the second scanner, and focusing the reflected light on a light spot with a predetermined diameter, so as to irradiate the light spot at a desired position of the processing component to be welded;

[0022] a first reciprocating unit located on a path of the first laser beam and between the first laser oscillator and the first scanner;

[0023] a second reciprocating unit, the second reciprocating unit being located on a path of the second laser beam and between the second laser oscillator and the second scanner, the first reciprocating unit and the second reciprocating unit both comprising a beam stopper for blocking the laser beam, a beam transmitter for passing the laser beam, and a reciprocating driver for driving the beam stopper and the beam transmitter to move relative to the path of the laser beam;

[0024] a first beam expander, the first beam expander being located on a path of the first laser beam and between the first reciprocating unit and the first scanner;

[0025] A second beam expander is located on a path of the second laser beam and between the second reciprocating unit and the second scanner.

[0026] In certain embodiments, a component detection device for detecting the presence or absence of components is provided on the workbench.

[0027] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the present invention provides another fully automatic integrated assembly robot for lithium battery caps, and the functional mechanisms for assembling lithium battery caps are sequentially distributed on both sides of a work frame extending in a straight line. The assembly of each lithium battery cap must pass through the corresponding conveying channels of all workbenches on the work frame, and each conveying channel has multiple workstation slots. Each functional mechanism corresponds to the corresponding workstation slot to complete the corresponding assembly process, and each time an assembly process is completed, the conveying frame under the workbench rises and moves backward to convey the components in the workstation slot to the next workstation slot, and this is repeated until the lithium battery cap assembly is completed. The work frame extends in a straight line, and the overall structure is simple and compact, occupying less space. A conveying channel on each workbench corresponds to a lithium battery cap assembly, and there is at least one conveying channel on the workbench. Multiple conveying channels can be set, that is, multiple lithium battery caps can be assembled at the same time, which greatly improves the production efficiency of the enterprise and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0030] Figure 2 A three-dimensional schematic diagram of a working unit having a conveying platen which is the first one in the assembly process;

[0031] Figure 3 A schematic diagram of the appearance of the conveying mechanism in each working unit;

[0032] Figure 4 A schematic diagram of the internal structure of the conveying mechanism in each working unit;

[0033] Figure 5 It is a three-dimensional schematic diagram of a working unit without a conveying plate;

[0034] Figure 6 Exploded schematic diagram of the work unit without the workbench;

[0035] Figure 7 It is a three-dimensional schematic diagram of the handling robot;

[0036] Figure 8 It is a three-dimensional schematic diagram of the conveying device;

[0037] Fig. 9 A top view schematic diagram of a fully automatic integrated assembly device for lithium battery caps;

[0038] Fig.10 This is the working principle diagram of the welding mechanism;

[0039] Among them: 1. Base frame; 2. Working unit; 21. Workbench; 211. Transport channel; 212. Work station slot; 22. Transport chassis; 221. Cam; 23. Intermediate frame; 231. Roller; 232. Lead screw; 24. Transport frame; 241. Material handling suction cup; 25. Transport pressing plate; 3. Transport manipulator; 31. Turning seat; 32. Turning arm; 321. Claw; 322. Material grabbing suction cup; 4. Working auxiliary frame; U2. No. 2 conveying device; U3. No. 3 conveying device; U4. No. 4 conveying device; U5. No. 5 conveying device; U6. No. 1 welding mechanism; U7. No. 2 welding mechanism; U9. Resistance inspection mechanism; U10. High NG conveying device; U11. Electric NG conveying device; U12. Pressing device; 51. Conveying seat; 52. Rotating arm; 53. Material taking frame; 54. Material taking suction cup; 55. Lifting mechanism;

[0040] 611, first laser oscillator; 612, first reciprocating unit; 613, first beam expander; 614, first scanner; 621, second laser oscillator; 622, second reciprocating unit; 623, second beam expander; 624, second scanner; 65, scanning lens; 66, reflector. DETAILED DESCRIPTION

[0041] A fully automatic integrated assembly robot for lithium battery caps comprises a base frame 1, a work frame arranged on the base frame 1, a plurality of functional mechanisms sequentially distributed and arranged beside the work frame according to the assembly process, and a program controller for controlling the sequential execution of each mechanism.

[0042] The lithium battery cap is composed of five components: explosion-proof disk, top cover, orifice plate (aluminum sheet), orifice plate gasket and sealing ring. The assembly relationship of these five components is: 1. The orifice plate gasket is placed on the bottom surface of the explosion-proof disk, and the orifice plate is placed on the orifice plate gasket and welded to the bottom surface of the explosion-proof disk; 2. The top cover is welded and fixed to the top surface of the explosion-proof disk; 3. The sealing ring is put on the outside of the other four components and pressed and fixed together with these four components.

[0043] As attached Figure 1 , 9 As shown, the functional mechanisms arranged beside the workbench are: No. 3 conveying device U3 for feeding the orifice plate (aluminum sheet) assembly, No. 4 conveying device U4 for feeding the orifice plate gasket assembly, No. 1 welding mechanism U6, a handling robot 3 for turning the semi-finished product 180°, No. 2 conveying device U2 for feeding the top cover assembly, No. 2 welding mechanism U7, a height inspection mechanism, a resistance inspection mechanism U9, a high NG conveying device U10 for transferring the semi-finished products with unqualified height, an electric NG conveying device U11 for transferring the semi-finished products with unqualified resistance, a handling robot 3 for turning the semi-finished products 180° again, a No. 5 conveying device U5 for feeding the sealing ring assembly, and a pressing device U12 for buckling the semi-finished products and the assembly together.

[0044] As attached Figure 1-6 As shown in 9, the work frame includes five work units 2, and the five work units 2 are distributed along the front and rear corresponding straight lines. Figure 2 , 5 As shown, each working unit 2 includes a workbench 21 fixed on the base frame 1 and a conveying mechanism located below the workbench 21. Each workbench 21 has four conveying channels 211 extending in the front-to-back direction, and three workstation slots 212 for storing processing components are evenly distributed on the upper part of the conveying channels 211. The conveying mechanism includes a conveying frame 24 located below the workbench 21, and a conveying frame driving device for controlling the conveying frame 24 to rise, move backward, fall, and move forward and reset. The conveying frame 24 has four groups of material handling suction cups 241 corresponding to the conveying channels 211, and each group has four material handling suction cups 241 evenly fixed upward along the direction of the corresponding conveying channel 211.

[0045] The transport frame driving device includes a conveying base frame 22 fixed on the base frame 1, an intermediate frame 23 slidably arranged on the conveying base frame 22 along the up and down vertical directions, a transport frame 24 slidably arranged on the intermediate frame 23 along the front and back horizontal directions, an up and down driving mechanism is arranged between the intermediate frame 23 and the conveying base frame 22, and a front and back driving mechanism is arranged between the transport frame 24 and the intermediate frame 23.

[0046] The up and down drive mechanism and the front and rear drive mechanism can be respectively equipped with cylinders, or as in the present embodiment, as shown in the attached Figure 4 As shown, the up and down driving mechanism includes a cam 221 pivotally connected to the conveying base frame 22 and controlled by the up and down driving motors, and a roller 231 pivotally connected to the intermediate frame 23, and the outer contour of the roller 231 is always in conflict with the outer contour of the cam 221; the front and rear driving mechanism includes a screw 232 arranged on the intermediate frame 23, and front and rear driving motors for driving the screw 232, and the transport frame 24 is connected to the screw 232.

[0047] The upper and lower drive motors rotate to drive the cam 221 to rotate through the belt, and the transmission is transmitted through the roller 231, so that the intermediate frame 23 moves up and down, and the front and rear drive motors drive the lead screw 232 to move through the belt, so as to make the transport frame 24 move forward and backward. When the transport frame 24 rises, the material handling suction cup 241 extends out of the corresponding station slot 212 and then moves backward, and after reaching the next station slot 212, it descends and then moves forward to reset.

[0048] The left and right widths of the material handling suction cup 241 and the handling channel 211 are respectively smaller than the width of the processing assembly in the left and right directions. Therefore, the handling frame below the workbench rises to lift the assembly and move it to the next station slot position and then falls, and the assembly is stranded in the station slot.

[0049] As attached Figure 1 , 9 As shown, the first working unit and the second working unit are transitionally connected via the transport robot 3 and the work auxiliary frame 4, the second working unit and the third working unit, and the third working unit and the fourth working unit are transitionally connected via the work auxiliary frame 4 respectively. The work auxiliary frame 4 serves as an extension frame of the workbench, and has an auxiliary frame channel corresponding to the transport channel 211 on the front and rear workbenches 21, and a work station slot 212 arranged on the upper part of each auxiliary frame channel.

[0050] As attached Figure 7As shown, the handling robot 3 includes a flip seat 31 that is slidably arranged on the base frame 1, a flip power device arranged on the flip seat 31, and a flip arm 32 fixed on the output shaft of the flip power device. The flip arm 32 has four claws 321 that extend radially outward and have material-grabbing suction cups 322. Each claw 321 corresponds to the handling channel 211 of the adjacent two-side workbench 21. The center line of the flip arm 32 is arranged horizontally left and right and coincides with the axis center line of the output shaft of the flip power device. The claw 321 of the flip arm 32 rotates to the last four station slots of the previous workbench 21 to suck up the semi-finished product, rotates to the next auxiliary frame channel and falls, and the semi-finished product is retained on the station slot. When the corresponding next working unit is in operation, the handling frame under the workbench rises to lift up the components in the station slot and then transports them to the next station slot.

[0051] There will be multiple components in the work station slot of multiple workbenches 21, such as the first workbench. During the transportation process, the material handling suction cup can suck the lowest component, but the upper components are at risk of falling. Therefore, a conveying pressure plate 25 is provided on the workbench 21 to slide along the front and rear directions. The conveying pressure plate 25 is connected to the conveying frame 24 through the upper and lower telescopic cylinders. A plurality of pressure covers are fixed downwardly on the conveying pressure plate 25 corresponding to the work station slot 212, and each pressure cover corresponds to the corresponding material handling suction cup 241 downward.

[0052] The structures of conveyor device No. 3 U3, conveyor device No. 4 U4, conveyor device No. 2 U2, high NG conveyor device U10, electric NG conveyor device U11, and conveyor device No. 5 U5 are the same, and all include a conveying seat 51 fixed on the base frame 1, a rotating arm 52 on one side of which is rotatably connected to the conveying seat 51 through a conveying shaft extending in the vertical direction, and a material picking rack 53 is connected downwardly to the other side of the rotating arm 52 through a lifting mechanism 55, and four material picking suction cups 54 are fixed downward on the material picking rack 53, and each material picking suction cup 54 corresponds to a transport channel 211. Each component is supplied by a corresponding feeding rack, and the specific structure of the feeding rack is not an invention point and will not be repeated. The material picking rack 53 descends to suck up the four components on the feeding rack, lifts it upward, and the rotating arm 52 rotates 90° to align the suction suction cup 54 downwardly with the four station slots 212, and the material picking rack 53 moves downward, and the suction suction cup 54 places the component into the station slot 212.

[0053] The assembly process of the lithium battery cap is as follows:

[0054] 1. The explosion-proof disk is placed in the first row of workstation slots 212 of the first working unit through the No. 1 conveying device or the conveying mechanism of the previous equipment or manually. A component detection device for the presence or absence of components is provided on the workbench. The conveying frame lifts the component and moves it to the next workstation slot. The No. 3 conveying device U3 puts the orifice plate (aluminum sheet) component, and the No. 4 conveying device U4 puts the orifice plate gasket component. The three components are welded together by the No. 1 welding mechanism U6.

[0055] 2. The handling robot 3 turns the semi-finished product 180° and sends it to the second working unit;

[0056] 3. The second conveying device U2 puts the top cover assembly into the top cover assembly, and the second welding mechanism U7 welds the top cover assembly;

[0057] Fourth, the semi-finished products welded together with four components are inspected in turn by the height inspection mechanism and the resistance inspection mechanism U9 on the third working unit, and the semi-finished products with unqualified height are transferred by the high NG conveying device U10 on the fourth working unit, and the semi-finished products with unqualified resistance are transferred by the electrical NG conveying device U11;

[0058] 5. The remaining qualified semi-finished products are turned 180 degrees by the handling robot 3 and sent to the fifth working unit. The No. 5 conveying device U5 puts the sealing ring assembly into the sealing ring assembly, and the pressing device U12 buckles the semi-finished products and the sealing ring assembly together.

[0059] The structures of the first welding mechanism U6 and the second welding mechanism U7 are the same, and each of them includes:

[0060] A first laser oscillator 611 for emitting a first laser beam;

[0061] A second laser oscillator 621 for emitting a second laser beam;

[0062] a first scanner 614 for receiving the first laser beam emitted by the first laser oscillator 611 and reflecting the incident first laser beam;

[0063] a second scanner 624 for receiving the second laser beam emitted by the second laser oscillator 621 and reflecting the incident second laser beam;

[0064] A scanning lens 65 is used to receive the reflected light from the first scanner 614 and the second scanner 624, and focus the reflected light on a light spot with a predetermined diameter, so as to irradiate the light spot at a desired position of the processing component to be welded;

[0065] A first reciprocating unit 612, which is located on the path of the first laser beam and between the first laser oscillator 611 and the first scanner 614;

[0066] a second reciprocating unit 622, the second reciprocating unit 622 is located on the path of the second laser beam and between the second laser oscillator 621 and the second scanner 624, the first reciprocating unit 612 and the second reciprocating unit 622 both comprising a beam stopper for blocking the laser beam, a beam transmitter for passing the laser beam, and a reciprocating driver for driving the beam stopper and the beam transmitter to move relative to the path of the laser beam;

[0067] A first beam expander 613, which is located on the path of the first laser beam and between the first reciprocating unit 612 and the first scanner 614;

[0068] The second beam expander 623 is located on the path of the second laser beam and between the second reciprocating unit 622 and the second scanner 624. It also includes a plurality of reflective mirrors 66 respectively disposed on the paths of the first laser beam and the second laser beam.

[0069] In this embodiment, during welding, the orifice plate gasket is placed on the bottom surface of the explosion-proof plate, the orifice plate (aluminum sheet) is placed on the orifice plate gasket, and the orifice plate (aluminum sheet) is welded to the bottom surface of the explosion-proof plate. After welding, the whole is turned over, and the top cover is placed on the top surface of the explosion-proof plate, and the top cover is welded to the top surface of the explosion-proof plate. The orifice plate (aluminum sheet), the explosion-proof plate and the top cover are made of different materials and layers, so they have different optical properties and laser beam absorption, and are suitable for different laser beam parameters, such as the wavelength, frequency, pulse width, etc. of the laser beam. The No. 1 welding mechanism U6 only needs to weld between the orifice plate (aluminum sheet) and the bottom surface of the explosion-proof plate, so here only the parameters of the first laser oscillator 611 need to be set, the first laser beam needs to be emitted, and the orifice plate (aluminum sheet) and the explosion-proof plate are welded after passing through the first reciprocating unit 612, the first beam expander 613, the first scanner 614, and the scanning lens 65, and the second laser oscillator 621 does not work. Similarly, the No. 2 welding mechanism U7 also only needs to weld between the top cover and the explosion-proof plate. Therefore, here it is also only necessary to set the parameters of the first laser oscillator 611, emit the first laser beam, and weld the top cover and the explosion-proof plate after passing through the first reciprocating unit 612, the first beam expander 613, the first scanner 614, and the scanning lens 65. The second laser oscillator 621 does not work.

[0070] If three layers need to be welded each time according to different processed products, the parameters of the second laser oscillator 621 can be set and its operation can be controlled. The welding method is the same as that of the first laser oscillator 611 and will not be described in detail.

[0071] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic integrated assembly robot for lithium battery caps, comprising a base frame (1), a work frame arranged on the base frame (1), a plurality of functional mechanisms arranged on the side of the work frame in sequence according to the assembly process, and a program controller for controlling the sequential execution, characterized in that: The work frame comprises a plurality of work units (2), the plurality of work units (2) being distributed along corresponding front and rear straight lines, each work unit (2) comprising a work table (21) fixed on the base frame (1), and a conveying mechanism located below the work table (21), the work table (21) having at least one conveying channel (211) extending in the front-rear direction, and a plurality of workstation slots (212) for storing processing components evenly distributed on the upper part of the conveying channel (211), the conveying mechanism comprising a conveying frame (24) located below the work table (21), and a conveying frame driving device for controlling the conveying frame (24) to rise, move backward, descend, and move forward and reset, and a plurality of material handling suction cups (241) are evenly fixed upward along the direction of the corresponding conveying channel (211), when the conveying frame (24) rises, the material handling suction cups (241) extend out of the corresponding workstation slots (212) and then move backward, and then descend and move forward and reset after reaching the next workstation slot (212); Each adjacent two working units (2) are directly butted end to end, or are transitionally connected in the middle via a handling robot (3) and / or a working auxiliary frame (4); the working auxiliary frame (4) has an auxiliary frame channel corresponding to the handling channels (211) on the front and rear workbenches (21), and a work station slot (212) arranged on the upper part of each auxiliary frame channel; the functional mechanism comprises, in order of assembly process: a No. 1 conveying device for feeding components into the corresponding work station slot (212), a No. 3 conveying device (U3) for feeding components into the corresponding work station slot (212), a No. 4 conveying device (U4) for feeding components into the corresponding work station slot (212), a No. 1 welding mechanism (U6) for welding the three-layer components in the corresponding work station slot (212) together, the handling robot (3) for turning the semi-finished product 180 degrees, and a No. 1 conveying device (U6) for feeding the components into the corresponding work station slot (212). (212) a No. 2 conveying device (U2) for feeding components, a No. 2 welding mechanism (U7) for welding the four-layer components in the corresponding work station slot (212) together, a height inspection mechanism for detecting the height of the semi-finished products in the corresponding work station slot (212), a resistance inspection mechanism (U9) for detecting the resistance of the semi-finished products in the corresponding work station slot (212), a high NG conveying device (U10) for transferring the semi-finished products with unqualified height in the corresponding work station slot (212), an electric NG conveying device (U11) for transferring the semi-finished products with unqualified resistance in the corresponding work station slot (212), the handling robot (3) for turning the semi-finished products 180 degrees, a No. 5 conveying device (U5) for feeding components into the corresponding work station slot (212), and a pressing device (U12) for buckling the semi-finished products in the corresponding work station slot (212) with the components.

2. The fully automatic integrated assembly robot for lithium battery caps according to claim 1, characterized in that: The transport frame driving device comprises a conveying frame (22) fixed on the base frame (1), an intermediate frame (23) slidably arranged on the conveying frame (22) along the up-down vertical direction, the transport frame (24) slidably arranged on the intermediate frame (23) along the front-back horizontal direction, an up-down driving mechanism is arranged between the intermediate frame (23) and the conveying frame (22), and a front-back driving mechanism is arranged between the transport frame (24) and the intermediate frame (23).

3. The fully automatic integrated assembly robot for lithium battery caps according to claim 2, characterized in that: The up-down driving mechanism comprises a cam (221) pivotally connected to the conveying base frame (22) and controlled by an up-down driving motor, and a roller (231) pivotally connected to the intermediate frame (23), wherein the outer contour of the roller (231) always contacts the outer contour of the cam (221); the front-back driving mechanism comprises a lead screw (232) arranged on the intermediate frame (23), and a front-back driving motor for driving the lead screw (232), and the transport frame (24) is connected to the lead screw (232).

4. The fully automatic integrated assembly robot for lithium battery caps according to claim 1, characterized in that: A conveying pressure plate (25) is slidably provided on the workbench (21) in the front-rear direction, and the conveying pressure plate (25) is connected to the transport frame (24) via an up-and-down telescopic mechanism. A plurality of pressure covers are fixed downwardly on the conveying pressure plate (25) corresponding to the workstation slots (212), and each of the pressure covers corresponds downwardly to a corresponding material handling suction cup (241).

5. The fully automatic integrated assembly robot for lithium battery caps according to claim 4, characterized in that: The left-right widths of the material handling suction cup (241) and the handling channel (211) are respectively smaller than the left-right widths of the processing assembly.

6. The fully automatic integrated assembly robot for lithium battery caps according to any one of claims 1 to 5, characterized in that: The handling robot (3) comprises a flip seat (31) slidably arranged on the base frame (1), a flip power device arranged on the flip seat (31), and a flip arm (32) fixed on the output shaft of the flip power device, wherein the flip arm (32) has at least one tooth claw (321) radially extending outward and having a material grabbing suction cup (322), each of the tooth claws (321) corresponding to the handling channel (211) of the workbench (21) on two adjacent sides, and the center line of the flip arm (32) is arranged horizontally left and right and coincides with the axis center line of the output shaft of the flip power device.

7. The fully automatic integrated assembly robot for lithium battery caps according to claim 1, characterized in that: The No. 3 conveying device (U3), the No. 4 conveying device (U4), the No. 2 conveying device (U2), the high NG conveying device (U10), the electric NG conveying device (U11), and the No. 5 conveying device (U5) have the same structure, and all include a conveying seat (51) fixed on the base frame (1), a rotating arm (52) rotatably connected to the conveying seat (51) on one side through a conveying shaft extending in a vertical direction, and a material picking rack (53) is connected downwardly on the other side of the rotating arm (52) through a lifting mechanism (55), and at least one material picking suction cup (54) is fixed downward on the material picking rack (53), and each of the material picking suction cups (54) corresponds to one of the transport channels (211).

8. The fully automatic integrated assembly robot for lithium battery caps according to claim 1, characterized in that: The first welding mechanism (U6) and the second welding mechanism (U7) have the same structure, and both include: A first laser oscillator (611) for emitting a first laser beam; A second laser oscillator (621) for emitting a second laser beam; a first scanner (614) for receiving a first laser beam emitted by a first laser oscillator (611) and reflecting the incident first laser beam; a second scanner (624) for receiving a second laser beam emitted by a second laser oscillator (621) and reflecting the incident second laser beam; a scanning lens (65) for receiving reflected light from the first scanner (614) and the second scanner (624), and focusing the reflected light on a light spot having a predetermined diameter, thereby irradiating the light spot at a desired position of a processing component to be welded; a first reciprocating unit (612), the first reciprocating unit (612) being located on the path of the first laser beam and between the first laser oscillator (611) and the first scanner (614); a second reciprocating unit (622), the second reciprocating unit (622) being located on the path of the second laser beam and between the second laser oscillator (621) and the second scanner (624), the first reciprocating unit (612) and the second reciprocating unit (622) both comprising a beam stopper for blocking the laser beam, a beam transmitter for passing the laser beam, and a reciprocating drive for driving the beam stopper and the beam transmitter to move relative to the path of the laser beam; a first beam expander (613), the first beam expander (613) being located on the path of the first laser beam and between the first reciprocating unit (612) and the first scanner (614); A second beam expander (623), the second beam expander (623) is located on the path of the second laser beam and between the second reciprocating unit (622) and the second scanner (624).

9. The fully automatic integrated assembly robot for lithium battery caps according to claim 1, characterized in that: The workbench is provided with a component detection device for detecting whether there are components.

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