Lithium battery lamination fly cutting mechanism

Abstract

A lithium battery lamination fly-cutting mechanism comprises: an equipment frame body including an upper frame body and a lower frame body; the power assembly is installed on the upper frame body, a connecting part is arranged at the output end of the power assembly, and the power assembly is used for driving the connecting part to do reciprocating motion in the vertical direction; the lower end of the connecting part is connected with the cutter assembly and drives the cutter assembly to cut materials in the vertical direction; the feeding assembly is used for pulling the composite material belt to move to the material cutting position of the cutter assembly in the feeding direction; the clamping assembly is used for clamping and positioning the composite material, and the feeding assembly, the cutter assembly and the clamping assembly are sequentially installed on the lower frame body in the feeding direction; and the position chasing assembly is connected with the upper frame body and the lower frame body, and the position chasing assembly is used for driving the lower frame body to move forwards in the feeding direction and feeding the cut pole pieces into the next working procedure. According to the device, the negative electrode material strip can be cut at a constant speed in equal length, slicing, feeding and clamping structures are effectively combined, the structure is reasonable and concentrated, and the cost increased due to an additional structure is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery manufacturing, in particular to a lithium battery lamination fly cutting mechanism. BACKGROUND

[0002] The lithium battery automatic cutting and laminating integrated machine structure is a hot composite cutting and laminating integrated machine device developed for power and energy storage lithium ion battery core manufacturing process, and adopts a hot composite technical route. The biggest feature of the hot composite technology is that the positive electrode, the negative electrode and the separator can be completely cut and stacked at one time, thereby effectively improving the quality and production rate of the laminated sheet and the battery cell. The composite laminated sheet does not reciprocate on the stacking table during the production process, the negative electrode sheet and the two layers of separators are combined into a unit before entering the stacking table through heating, and there is no separator tail roll after the laminated sheet is completed, thereby avoiding the problems of internal creases and tail roll creases of the separator during the laminating process. The separator moves at a uniform speed in the whole laminating process, thereby avoiding the alternation of the tension of the separator, the visual detection of the hot composite sheet is more accurate, and the error is close to zero. Moreover, the composite process makes the positive electrode sheet, the negative electrode sheet and the separator better adhere to each other, and the interface maintains better.

[0003] The principle of the lithium battery fly cutting sheet structure is to use a linear motor to drive a main drive feeding roller and a cutting tool to convert the uniform unwinding movement into intermittent sheet cutting movement, so as to ensure that the material roll is unwound smoothly, the continuous material belt is cut into equal-width sheets, and the sheets are sent to a fixed position.

[0004] However, the existing composite laminating machine cutting and sheet feeding mechanism has a large cost, and the separation feeding assembly occupies a certain space of the device. The mechanism needs to increase a buffer mechanism to ensure uniform unwinding during cutting, and the structure is more complex, which is not conducive to the maintenance space setting of the device. Content of the utility model

[0005] The application provides a lithium battery laminated sheet fly cutting mechanism, which is more reasonable and concentrated in structure, and reduces the cost of additional structures.

[0006] According to the application, a lithium battery laminated sheet fly cutting mechanism is provided in an embodiment, which comprises:

[0007] The device frame body comprises an upper frame body and a lower frame body;

[0008] The power assembly is installed on the upper frame body, the output end of the power assembly is provided with a connecting part, and the power assembly is used to drive the connecting part to reciprocate in the vertical direction;

[0009] The cutting knife assembly is connected to the lower end of the connecting part and drives the cutting knife assembly to cut the material in the vertical direction;

[0010] The feeding assembly is used to pull the composite material belt to move to the cutting position of the cutting knife assembly in the feeding direction;

[0011] A clamping assembly is arranged to clamp the composite material, and the feeding assembly, the cutter assembly and the clamping assembly are sequentially arranged along the feeding direction on the lower frame body; and

[0012] A position tracking assembly is connected to the upper frame body and the lower frame body, and is arranged to drive the lower frame body to move forward along the feeding direction and to feed the cut piece into the next process.

[0013] In another embodiment, the feeding assembly comprises a feeding driving member and two groups of feeding rollers arranged in parallel, and the two groups of feeding rollers are arranged in vertical direction and rotatably arranged on the lower frame body, and the feeding driving member is arranged to drive at least one group of feeding rollers to rotate.

[0014] In another embodiment, the feeding assembly is provided with a first guide member at the front end along the feeding direction, and the first guide member is arranged to guide the composite material to enter between the two groups of feeding rollers.

[0015] In another embodiment, the clamping assembly comprises a clamping driving member, and an upper clamping part and a lower clamping part arranged in vertical direction, and the lower clamping part is arranged to fix and support the composite material, and the clamping driving member is arranged on the lower frame body, and the upper clamping part is arranged at the output end of the clamping driving member, and the clamping driving member is arranged to drive the upper clamping part to move close to or away from the lower clamping part.

[0016] In another embodiment, the clamping assembly further comprises a material suction part arranged close to the side of the cutter assembly, and the material suction part is hollow and connected to a negative pressure module, and the material suction part is provided with a material suction port arranged to suck or press the composite material.

[0017] In another embodiment, the cutter assembly comprises a connecting rod, a cutter die and a positioning part, the cutter die comprises a supporting part and a cutting part, the positioning part is arranged to fix the supporting part on the lower frame body, the cutting part is slidably arranged on the supporting part in vertical direction, the lower end of the connecting rod is connected to the cutting part, and the upper end of the connecting rod is arranged to lower the cutting part.

[0018] In another embodiment, the cutter die further comprises a second guide member arranged to guide the composite material to enter between the supporting part and the cutting part.

[0019] In another embodiment, the position tracking assembly comprises a linear module and a feeding part, the linear module is arranged on the upper frame body, the upper end of the feeding part is adjustably arranged on the upper frame body through the linear module along the feeding direction, the lower end of the feeding part is connected to the lower frame body, and the linear module is arranged along the feeding direction and is arranged to drive the feeding part to move forward along the feeding direction.

[0020] In another embodiment, a third guide is provided between the feeding assembly and the cutting assembly, the third guide being used to guide the composite material from the feeding assembly into the cutting assembly.

[0021] In another embodiment, the upper frame is provided with a displacement groove along the feeding direction for the connecting rod to move.

[0022] According to the lithium battery stacking flying cutting mechanism of the above embodiment, the composite material is fed by the feeding component until it reaches the cutting position below the cutting component. The composite material is clamped and positioned by the clamping component at the rear end of the mechanism. The cutting component is lowered by the power component to cut the composite material into single electrode sheets. Then, the tracking component drives the clamping component to move forward along the feeding direction and feeds the cut electrode sheets into the next process. At the same time, when the tracking component retracts, the feeding component continues to feed to prevent the material strip from retracting. This application effectively combines the slicing, feeding and clamping structures of the flying cutting mechanism, saving design costs and space, making the structure more reasonable and concentrated, and reducing the cost increased by additional structures. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the lithium battery stacking and cutting mechanism in this embodiment;

[0024] Figure 2 A schematic diagram of the overall structure of the lithium battery stacking and cutting mechanism from another perspective;

[0025] Figure 3 This is a schematic diagram of the tracking component in one embodiment;

[0026] Figure 4 This is a schematic diagram of the overall structure of the lower frame in one embodiment;

[0027] Figure 5 This is a schematic diagram of the feeding assembly in one embodiment;

[0028] Figure 6 This is a schematic diagram of the clamping component in one embodiment;

[0029] Figure 7 This is a schematic diagram of the power component in one embodiment;

[0030] Figure 8 This is a schematic diagram of the cutter assembly in one embodiment;

[0031] Figure 9 for Figure 8 A partial structural diagram;

[0032] Figure 10 This is a schematic diagram of the structure of the third guide member in one embodiment.

[0033] Label: 1, equipment frame body; 11, upper frame body; 111, displacement avoidance groove; 12, lower frame body; 121, feeding frame; 122, mounting frame; 123, support frame; 124, third guide; 1241, anti-warping plate; 1242, vertical rod; 2, power assembly; 21, connecting part; 211, connecting plate; 212, guide strip; 213, guide block; 214, connecting frame; 215, sliding rod; 216, connecting rod sliding block; 22, cutter drive; 23, rotating shaft; 24, eccentric wheel; 25, fixed seat; 3, cutter assembly; 31, connecting rod; 32, cutter die; 321, support part; 322, cutting part; 323, guide part; 324, second guide; 33, positioning part; 4, feeding assembly; 41, feeding drive part; 42, feeding roller; 43, first guide; 5, clamping assembly; 51, clamping drive part; 52, upper clamping part; 53, lower clamping part; 54, material suction part; 541, material suction port; 6, position tracking assembly; 61, linear module; 62, feeding part. DETAILED DESCRIPTION

[0034] The application will be described in further detail below with reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following embodiments, many details are described in order to provide a better understanding of the application. However, a person skilled in the art can easily recognize that some features can be omitted in different cases, or can be replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary for a person skilled in the art to understand the related operations in detail according to the description in the specification and general technical knowledge in the art.

[0035] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that is obvious to a person skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0036] The serial numbers of the components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequential or technical meaning. The "connection" and "coupling" in this application include direct and indirect connections (couplings) unless otherwise specified.

[0037] The principle of the lithium battery fly-cutting structure is to use the linear motor to drive the main drive feeding roller 42 and the cutting tool to convert the uniform unwinding movement into intermittent slice feeding movement, to ensure that the material roll is gently fed while the continuous material belt is cut into equal-width slices, and the slices are fed to a fixed position. The existing composite lamination machine slice feeding mechanism has a large cost, and the separation feeding assembly 4 occupies a certain space of the equipment, and the mechanism needs to increase a buffer mechanism to ensure uniform unwinding during slicing, which has a more complex structure and is not conducive to equipment maintenance space setting.

[0038] The application provides a lithium battery lamination fly-cutting mechanism, which belongs to the negative electrode sheet production process of lithium battery production and plays a role of connecting slice unwinding and diaphragm compounding; the negative electrode material belt is uniformly and equally cut, the structure is reasonable and concentrated, and the cost is reduced due to the increase of additional structures.

[0039] In an embodiment of the application, a lithium battery lamination fly-cutting mechanism is provided, referring to Figure 1 and Figure 2 , comprising: an equipment frame body 1 for supporting the lithium battery lamination fly-cutting mechanism, and the equipment frame body 1 is provided with an upper frame body 11 and a lower frame body 12 for installing various components of the fly-cutting mechanism; a power assembly 2 installed on the upper frame body 11, the output end of the power assembly 2 is provided with a connecting part 21, and the power assembly 2 is used to drive the connecting part 21 to make reciprocating motion in the vertical direction; a cutter assembly 3 connected to the lower end of the connecting part 21 and driving the cutter assembly 3 to cut material in the vertical direction; a feeding assembly 4 used to pull the composite material belt to move to the cutting position of the cutter assembly 3 in the feeding direction; a clamping assembly 5 used to clamp and position the composite material, and the feeding assembly 4, the cutter assembly 3 and the clamping assembly 5 are installed on the lower frame body 12 in sequence in the feeding direction; and a tracking assembly 6 connecting the upper frame body 11 and the lower frame body 12, the tracking assembly 6 is used to drive the lower frame body 12 to move forward in the feeding direction and send the completed slice to the next process.

[0040] In the embodiment, the composite material is fed by the feeding assembly 4 until the composite material reaches the cutting position below the cutter assembly 3, the front end of the composite material is clamped and positioned by the clamping assembly 5 at the rear end of the mechanism, the cutter assembly 3 is lowered to cut the composite material into single slices by the descending power provided by the power assembly 2, then the tracking assembly 6 drives the clamping assembly 5 to move forward in the feeding direction and sends the completed slice to the next process, while the tracking assembly 6 retreats, the feeding assembly 4 continues to feed to avoid the material belt from retreating; the fly-cutting mechanism of the application effectively combines the slicing, feeding and clamping structures, saves the design cost and the space occupied by the mechanism, the structure is more reasonable and concentrated, and the cost is reduced due to the increase of additional structures.

[0041] Particularly, in the negative electrode sheeting process of the lithium battery production of the lithium battery automatic cutting and folding integrated machine, the lithium battery sheeting fly cutting mechanism disclosed in the embodiment of the application is provided with two groups, and the two groups of lithium battery sheeting fly cutting mechanisms are distributed on the equipment frame body 1 in the vertical direction. The two groups of lithium battery sheeting fly cutting mechanisms are alternately moved up and down to accelerate the cutting completed sheet to the uniform speed of the composite material belt, so that the cut sheet and the composite material belt enter the next process at a relatively static speed, and the overall working efficiency of the equipment is improved.

[0042] Please refer to Figure 2 and Figure 3 , the chasing component 6 includes a linear module 61 and a feeding part 62. The linear module 61 is arranged in the feeding direction, and the linear track of the linear module 61 is installed at the lower end of the upper frame body 11. The lower frame body 12 is arranged as a square frame structure, including a feeding frame 121 at the upper end, mounting frames 122 at both sides, and a supporting frame 123 at the bottom end from top to bottom. The upper end of the feeding part 62 is connected to the sliding block of the linear module 61, so that the feeding part 62 can be moved along the feeding direction through the linear module 61. The lower end of the feeding part 62 is connected to the top end of the feeding plate. The sliding block of the linear module 61 drives the feeding part 62 and the lower frame body 12 as a whole to move forward in the feeding direction, so as to send the cut sheet to the next process.

[0043] In other embodiments, the chasing component 6 is provided with a gas cutting protection path, which can effectively clamp the linear motor and the clamping structure to maintain the position before power failure, thereby eliminating safety hazards.

[0044] Please refer to Figure 4 and Figure 5 , the feeding assembly 4 includes a feeding driving part 41 and two groups of feeding rollers 42 arranged in parallel. The two groups of feeding rollers 42 are distributed in the vertical direction, and the two ends of the two groups of feeding rollers 42 are rotatably installed in the mounting frames 122. The feeding driving part 41 is used to drive at least one group of feeding rollers 42 to rotate. Specifically, the upper end of the feeding roller 42 is the driving roller, and the lower end of the feeding roller 42 is the passive roller. The feeding driving part 41 adopts a driving motor. The feeding driving part 41 is installed on the lower frame body 12 and drives the upper end of the feeding roller 42. The feeding driving part 41 also includes other control structures and is electrically connected with the control system of the equipment to control the rotating speed and direction of the feeding roller 42.

[0045] Please refer to Figure 1 , the front end of the feeding assembly 4 in the feeding direction is provided with a first guide 43, which is used to guide the composite material into the space between the two groups of feeding rollers 42. Specifically, a connecting plate is arranged on the feeding frame 121. The connecting plate is provided with a linear slide rail arranged in the feeding direction. A mounting plate is connected to the sliding block on the linear slide rail. The first guide 43 is mounted on the mounting plate, so that the position of the first guide plate can be adaptively adjusted according to the site.

[0046] Please refer to Figure 5 , the first guide piece 43 includes two groups of parallel guide plates, the guide plates include parallel sections and opening sections, the opening sections are towards the incoming direction of the composite material, and are provided in a horn opening manner, facilitating guiding the composite material into the two parallel sections, and enabling the composite material to enter and position the pole piece in a flush state during feeding.

[0047] Please refer to Figure 4 and Figure 6 , the clamping assembly 5 includes a clamping driving piece 51, and an upper clamping part 52 and a lower clamping part 53 oppositely arranged in the vertical direction, the lower clamping part 53 is used for supporting the composite material and is fixedly installed on the support frame 123, the clamping driving piece 51 is installed on the feeding frame 121, the upper clamping part 52 is arranged at the output end of the clamping driving piece 51, and the clamping driving piece 51 is used to drive the upper clamping part 52 to approach or move away from the lower clamping part 53.

[0048] Please refer to Figure 6 , the clamping driving piece 51 includes a torque motor, a lead screw, a sliding part and a guide structure, the torque motor is installed on the feeding frame 121, the lead screw is coaxially connected with the rotating shaft of the torque motor, for example, key connection or shaft coupling connection, the sliding part is threadedly connected with the lead screw, and the guide structure is connected with the sliding part and is used to limit the circumferential rotation of the sliding part along the lead screw. In this embodiment, the guide structure includes a guide rail, a guide block, a pressing plate and a connecting rod 31, the guide rail is installed on the feeding frame 121, the guide block is arranged in a matched mode with the guide rail and is slidably installed on the guide rail, the pressing plate is connected with the guide block and the upper clamping part 52, the connecting rod 31 is connected with the sliding part and the pressing plate, and the guide rail is parallel to the rotating shaft of the torque motor and is arranged in the vertical direction, so as to drive the upper clamping part 52 to ascend and descend in the vertical direction and realize material pressing.

[0049] In other embodiments, the clamping driving piece 51 can also adopt a structure capable of realizing linear movement, such as a pneumatic cylinder, a hydraulic cylinder or a linear motor, and the specific device to be adopted can be set according to the site condition.

[0050] Please refer to Figure 6 , the clamping assembly 5 further includes a material suction part 54, the material suction part 54 is arranged on the side close to the cutter assembly 3, the material suction part 54 is hollow and is connected with a negative pressure module, and the material suction part 54 is provided with a material suction port 541 used for suction or pressing holding of the composite material; in this embodiment, the material suction part 54 is arranged in flush with the material suction part 54, the lower clamping part 53 has a passage communicated with the negative pressure module and is communicated with the inner cavity of the material suction part 54, and the negative pressure is realized by the negative pressure module to realize material suction and dust removal.

[0051] In other embodiments, the material suction part 54 can also be arranged on the upper clamping part 52, and the composite material is pressed and held on the lower clamping part 53 by blowing.

[0052] Please refer to Figure 1 and Figure 7, the power assembly 2 includes a cutter drive 22, a rotating shaft 23, an eccentric wheel 24 and two sets of fixed seats 25, the cutter drive 22 is installed at the top end of the upper frame body 11, the output shaft of the cutter assembly 3 is arranged in parallel, the rotating shaft 23 is coaxially installed on the rotating shaft of the cutter drive 22, the two sets of fixed seats 25 are fixed on the upper end of the upper frame body 11 and serve as the support of the rotating shaft 23, the eccentric wheel 24 is arranged on the rotating shaft 23, and the axis of the rotating shaft 23 is parallel to but not coincident with the axis of the eccentric wheel 24; the connecting part 21 includes a connecting plate 211 and a guide strip 212, the connecting plate 211 is provided with a slot for the rotation of the eccentric wheel 24, the guide strip 212 is installed on any fixed seat 25, the connecting plate 211 is provided with a guide block 213 matched with the guide strip 212, and the guide strip 212 is vertically arranged.

[0053] In the embodiment, the bearing suitable for each rotating position is arranged, the cutter drive 22 drives the rotating shaft 23 and the eccentric wheel 24 to rotate, under the guidance of the guide strip 212 and the guide block 213, the connecting plate 211 cannot be deviated in the horizontal direction, the continuous rotation of the eccentric wheel 24 drives the connecting plate 211 to continuously rise and fall in the vertical direction, thereby providing a falling stroke for the cutting of the cutter assembly 3.

[0054] Please refer to Figure 8 and Figure 9 , the cutter assembly 3 includes a connecting rod 31, a cutter die 32 and a positioning part 33, the cutter die 32 includes a support part 321 and a cutting part 322, the positioning part 33 is arranged in a quick-release structure and used for fixing the support part 321 to the lower frame body 12, the cutting part 322 is slidably installed on the support part 321 in the vertical direction, the lower end of the cutting part 322 is arranged as a cutter, the lower end of the connecting rod 31 is connected with the cutting part 322, the upper end of the connecting rod 31 passes through the feeding frame 121 and falls to cut the material through the connecting part 21, the feeding frame 121 is provided with a position-avoiding opening through which the connecting rod 31 passes, and the upper frame body 11 is provided with a displacement avoiding groove 111 through which the connecting rod 31 moves in the feeding direction; the support part 321 is provided with a vertical guide part 323, the guide part 323 passes through the cutting part 322 to guide the cutter, so that the cutting process is more stable.

[0055] Please refer to Figure 7 and Figure 8 , specifically, the connecting plate 211 is provided with connecting frames 214 at two ends, the connecting frames 214 are arranged in a suspended mode relative to the upper frame body 11, the connecting frames 214 are provided with slide rods 215 distributed in the feeding direction, the slide rods 215 are provided with connecting rod sliding blocks 216 used for connecting with the upper end of the connecting rod 31, when the power assembly 2 is started, the connecting plate 211 drives the connecting frames 214, the slide rods 215 and the connecting rod sliding blocks 216 to press and hold the connecting rod 31 to fall to cut the material, when the linear module 61 drives the lower frame body 12 to move forward, the connecting rod 31 moves forward and backward in the displacement wall groove through the connecting rod sliding blocks 216 along the slide rods 215, so that the cutter assembly 3 is realized to cut the material and feed the material by moving forward.

[0056] Please refer to Figure 8 and Figure 9 , the positioning part 33 and the lower frame body 12 form a quick release structure, which is convenient for single person to quickly replace the mold; specifically, in the embodiment of the application, the support part 321 is provided with an inner groove with an acute angle at both ends, the support part 321 is placed on the support frame 123, the support part 321 is limited by the feeding frame 121, the mounting frame 122 and the support frame 123 at both ends, the support frame 123 is provided with a positioning hole at the corner corresponding to the inner groove of the support part 321, and the front and rear ends of the cutter mold 32 are limited by the positioning hole, so that the cutter mold 32 is quickly released.

[0057] Please refer to Figure 9 and Figure 10 , the cutter mold 32 further comprises a second guide 324, the second guide 324 is used to guide the composite material into the space between the support part 321 and the cutting part 322, the second guide 324 is provided as a plate and comprises a pressing section and a receiving section, the pressing section is fixed to the support part 321 and has a gap between the support part 321 for the composite material to pass through, the receiving section is towards the side of the feeding assembly 4 and is provided as a horn opening, which is convenient for guiding the composite material into the space between the pressing section and the support part 321.

[0058] Please refer to Figure 9 and Figure 10 , based on the distance between the feeding assembly 4 and the cutter assembly 3 and the possible warping of the front end of the cut composite material, a third guide 124 is provided between the feeding assembly 4 and the cutter assembly 3, which is used to guide the composite material from the feeding assembly 4 into the range of the second guide 324. The third guide 124 comprises an anti-warping plate 1241 and a vertical rod 1242, the vertical rod 1242 is installed at the lower end of the feeding frame 121, the lower end of the vertical rod 1242 is connected to the long anti-warping plate 1241, the anti-warping plate 1241 is suspended above the composite material to limit the deviation of the composite material in height during continuous feeding; the intersection surface of the anti-warping plate 1241 and the feeding roller 42 is parallel, the lower end surface of the anti-warping plate 1241 is provided as an inclined surface close to one end of the feeding assembly 4, which is convenient for guiding the pressing composite material and keeping the composite material flat, the anti-warping plate 1241 is within the opening range of the receiving section, and the composite material is directly guided into the range of the cutter assembly 3.

[0059] In this embodiment, the fly cutting mechanism as a whole adopts a brake air, and the power-off and air-off keep it in place, which eliminates the production safety risk, and the adaptive loading of the CCD camera and the detection sensor is convenient for manual discovery and processing of equipment abnormalities.

[0060] In the application, the slicing and laminating production process of the lithium battery greatly improves the slicing and laminating speed and ensures the slicing and laminating yield; the feeding, cutter, clamping and position tracking feeding mechanisms are combined, for the large-size high-speed high-capacity battery slicing and laminating equipment, the equipment timing can be effectively improved and the manufacturing cost of the equipment can be reduced, the process actions of the mechanism are effectively combined, and daily maintenance is facilitated; the integrated structure reduces the production cost of the equipment, the space layout is compact, and the equipment volume is reduced.

[0061] The above describes the utility model by using specific examples, which is only used to help understand the utility model and does not limit the utility model. According to the idea of the utility model, those skilled in the art of the utility model can make some simple deductions, deformations or substitutions.

Claims

1. A lithium battery lamination fly-cutting mechanism, characterized in that, The utility model relates to a cutting device for composite material, comprising: a device frame (1) comprising an upper frame (11) and a lower frame (12); a power assembly (2) mounted on the upper frame (11), the output end of the power assembly (2) being provided with a connecting part (21), and the power assembly (2) being used to drive the connecting part (21) to make reciprocating motion in the vertical direction; a cutter assembly (3) connected to the lower end of the connecting part (21) and driven by the connecting part (21) to cut material in the vertical direction; a feeding assembly (4) used to pull the composite material to move in the feeding direction to the cutting position of the cutter assembly (3); a clamping assembly (5) used to clamp and position the composite material, and the feeding assembly (4), the cutter assembly (3) and the clamping assembly (5) being sequentially mounted on the lower frame (12) in the feeding direction; and a position tracking assembly (6) connecting the upper frame (11) and the lower frame (12), the position tracking assembly (6) being used to drive the lower frame (12) to move forward in the feeding direction and send the cut material to the next process.

2. The lithium battery lamination fly-cutting mechanism of claim 1, wherein, The feeding assembly (4) comprises a feeding driving member (41) and two groups of feeding rollers (42) arranged in parallel, the two groups of feeding rollers (42) being distributed in the vertical direction and rotatably mounted on the lower frame (12), and the feeding driving member (41) being used to drive at least one group of feeding rollers (42) to rotate.

3. The lithium battery lamination fly-cutting mechanism of claim 2, wherein, The front end of the feeding assembly (4) in the feeding direction is provided with a first guide member (43), and the first guide member (43) is used to guide the composite material to enter between the two groups of feeding rollers (42).

4. The lithium battery lamination fly-cutting mechanism of claim 1, wherein, The clamping assembly (5) comprises a clamping driving member (51) and an upper clamping part (52) and a lower clamping part (53) oppositely arranged in the vertical direction, the lower clamping part (53) being fixed and supporting the composite material, the clamping driving member (51) being mounted on the lower frame (12), the upper clamping part (52) being arranged at the output end of the clamping driving member (51), and the clamping driving member (51) being used to drive the upper clamping part (52) to move close to or away from the lower clamping part (53).

5. The lithium battery lamination fly-cutting mechanism of claim 4, wherein, The clamping assembly (5) further comprises a material suction part (54) arranged on the side close to the cutter assembly (3), the material suction part (54) being hollow and connected to a negative pressure module, and the material suction part (54) being provided with a material suction port (541) used to adsorb or press the composite material.

6. The lithium battery lamination fly-cutting mechanism of claim 1, wherein, The cutter assembly (3) comprises a connecting rod (31), a cutter die (32) and a positioning part (33), the cutter die (32) comprising a supporting part (321) and a cutting part (322), the positioning part (33) being used to fix the supporting part (321) to the lower frame (12), the cutting part (322) being slidably mounted on the supporting part (321) in the vertical direction, the lower end of the connecting rod (31) being connected to the cutting part (322), and the upper end of the connecting rod (31) being lowered to cut material through the connecting part (21).

7. The lithium battery lamination fly-cutting mechanism of claim 6, wherein, The cutter die (32) further comprises a second guide (324) for guiding the composite material between the support part (321) and the cutting part (322).

8. The lithium battery lamination fly-cutting mechanism of claim 6, wherein, The position tracking assembly (6) comprises a linear module (61) and a feeding part (62), the linear module (61) is installed on the upper frame body (11), the upper end of the feeding part (62) is adjustably installed on the upper frame body (11) along the feeding direction through the linear module (61), the lower end of the feeding part (62) is connected with the lower frame body (12), and the linear module (61) is arranged along the feeding direction and used for driving the feeding part (62) to move forward along the feeding direction.

9. The lithium battery lamination fly-cutting mechanism of claim 6, wherein, A third guide (124) is arranged between the feeding assembly (4) and the cutter assembly (3), and the third guide (124) is used for guiding the composite material from the feeding assembly (4) into the cutter assembly (3).

10. The lithium battery lamination fly-cutting mechanism of claim 9, wherein, The upper frame body (11) is provided with a displacement avoiding groove (111) for the movement of the connecting rod (31) along the feeding direction.

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