CN115533307A

CN115533307A - Dust removal cutting device of lithium-ion battery pole piece

Info

Publication number: CN115533307A
Application number: CN202211166863.7A
Authority: CN
Inventors: 肖小芬; 沈两尼; 尹蜜蜜; 李凯
Original assignee: Ganzhou Woneng New Energy Co ltd
Current assignee: Ganzhou Woneng New Energy Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-30

Abstract

The invention relates to a cutting device, in particular to a dust removal cutting device for a lithium battery pole piece. The invention aims to provide a dust removal cutting device for a lithium battery pole piece, which can automatically feed the lithium battery pole piece. The invention provides a dust removal cutting device for a lithium battery pole piece, which comprises a workbench, first guide rods, a supporting block, a laser cutting head and the like, wherein the middle of the upper part of the workbench is connected with the two first guide rods, the supporting block is arranged between the left sides of the two first guide rods in a sliding manner, and the bottom of the supporting block is connected with the laser cutting head for cutting the lithium battery pole piece. According to the invention, the motor is used as a driving force, the laser cutting head can be driven to reciprocate left and right, so that the lithium battery pole piece can be cut, and the roller can be driven to intermittently rotate, so that the lithium battery pole piece can be driven to intermittently forward transmit, the automatic feeding function is completed, the time and labor are saved, and the working efficiency is improved.

Description

Dust removal cutting device of lithium-ion battery pole piece

Technical Field

The invention relates to a cutting device, in particular to a dust removal cutting device for a lithium battery pole piece.

Background

At present, when the lithium battery is manufactured, the pole piece needs to be cut, then pole piece lamination is carried out, and when the pole piece is subjected to laser cutting, dust can be remained on the surface of the pole piece through the laser cutting, so that the pole piece is polluted, and the performance of the pole piece is influenced.

Patent application CN213437794U, the published date is 20210615, disclose a dust collector for lithium-ion battery sheet cutting, including the cutting bed, the fixed first link that is equipped with in one side on cutting bed top, the fixed first clearance subassembly that is equipped with in bottom of first link, first clearance subassembly includes first fixed plate, first positive and negative motor, first connecting screw rod, first movable block, first lift cylinder and first clearance brush, the fixed bottom that sets up at first link of first fixed plate, the fixed one side that sets up at first fixed plate of first positive and negative motor. The first connecting screw rod is convenient to drive through the arranged first forward and reverse rotating motor to rotate forward and reverse, the first connecting screw rod is connected with the first moving block through the first screw rod nut in a threaded mode, the first moving block is driven to move under the limiting effect of the first guide rod, the first lifting cylinder is convenient to drive the first cleaning brush to contact with the cutting table, and therefore impurities or waste materials on the cutting table are cleaned into the dust collection box. Although the dust processing to lithium battery pole piece on can be fallen to above-mentioned patent, cutting all needs the manual work to carry out the material loading to lithium battery pole piece at every turn, and comparatively trouble is consuming time hard.

To sum up, so now urgent need one kind can carry out the dust removal cutting device of the lithium-ion battery pole piece of material loading to lithium-ion battery pole piece automatically, be used for solving above-mentioned problem.

Disclosure of Invention

In order to overcome the defects that the conventional dust removal device for cutting the lithium battery pole piece generally cannot feed the lithium battery pole piece, is relatively troublesome and consumes time and labor, the invention aims to provide the dust removal cutting device for the lithium battery pole piece, which can automatically feed the lithium battery pole piece.

The invention is realized by the following technical approaches:

the utility model provides a lithium battery pole piece's dust removal cutting device, which comprises a workbench, first guide arm, the supporting shoe, the laser cutting head, remove the subassembly, dust absorption subassembly and promotion subassembly, the upper portion intermediate junction of workstation has two first guide arms, slidingtype is equipped with the supporting shoe between the left side of two first guide arms, the bottom of supporting shoe is connected with the laser cutting head that is used for carrying out the cutting to lithium battery pole piece, the upper portion of workstation is equipped with and is used for driving the removal subassembly that removes about the laser cutting head, the top front side of workstation is equipped with the dust absorption subassembly that is used for removing dust to lithium battery pole piece, the rear side of workstation is equipped with the promotion subassembly that is used for carrying out the material loading to lithium battery pole piece.

In one embodiment, the moving assembly comprises a motor, a screw rod and a nut, the motor is connected to the middle of the left side of the upper portion of the workbench, the screw rod is rotatably connected to the middle of the upper portion of the workbench, the screw rod is located above the first guide rod, the left end of the screw rod is connected with an output shaft of the motor, the nut is connected to the left side of the screw rod in a threaded mode, and the bottom of the nut is connected with the top of the supporting block.

In one embodiment, the dust collection assembly comprises a supporting frame, a collection frame, a handle, a dust collector, a dust collection pipe and a suction head, the supporting frame is connected to the front side of the lower portion of the workbench, the collection frame is connected to the supporting frame in a sliding mode, the handle is connected to the lower portion of the front side of the collection frame, the dust collector is connected to the middle of the top of the supporting frame and communicated with the top of the dust collector, the dust collection pipe is connected to the top of the dust collector and communicated with the top of the dust collector, the upper portion of the dust collection pipe penetrates through the front portion of the workbench, and the suction head is connected to the middle of the upper portion of the dust collection pipe and communicated with the upper portion of the dust collection pipe.

In one of the embodiments, the pushing assembly comprises a first supporting plate, a roller, a gear, a groove barrel, a first wedge block, a belt pulley, a transmission belt, a contact rod and a first spring, the first supporting plate is symmetrically connected to the left and right of the upper portion of the rear side of the workbench, the roller is rotatably connected to the upper portion and the lower portion of the two first supporting plates, the gear is connected to the right side of the roller, the two gears are meshed with each other, the groove barrel is rotatably connected to the middle of the upper portion of the workbench, the groove barrel is located on the rear side of the screw rod, the first wedge block is connected to the right portion of the front side of the groove barrel, the belt pulley is connected to the right side of the groove barrel and the roller right side of the upper side of the groove barrel, the transmission belt is wound between the two belt pulleys, the contact rod is connected to the rear side sliding type wedge block of the nut, the rear end of the contact rod slides in the groove barrel, the contact rod can contact with the first wedge block through rightward movement, and the first spring is connected between the front side of the contact rod and the nut.

In one embodiment, the lithium battery pole piece fixing device further comprises a fixing component for compressing the lithium battery pole piece, the fixing component comprises a second guide rod, a connecting rod, a fixing plate, a second spring, a connecting rod, a second wedge block and a third spring, the second guide rod is connected to the left side and the right side of the front side and the rear side of the top of the workbench respectively, the connecting rod is connected between the two corresponding second guide rods in a sliding mode, the fixing plate is connected to the left side and the right side of the bottom of the connecting rod respectively, the second spring is wound on the second guide rod, two ends of the second spring are connected with the workbench and the connecting rod respectively, the connecting rod is connected to the tops of the two connecting rods respectively, the second wedge block is connected to the lower portions of the front side and the rear side of the supporting block in a sliding mode, the third spring is connected between the inner side of the second wedge block and the supporting block.

In one embodiment, the cleaning device further comprises a brushing assembly for cleaning the lithium battery pole piece, the brushing assembly comprises a magnet, a second supporting plate and brush wires, the second supporting plate is arranged at the bottom of the suction head, the magnets are connected to the left side and the right side of the upper portion of the second supporting plate and the left side and the right side of the lower portion of the suction head, two adjacent magnets are in contact with each other, and the brush wires are connected to the bottom of the second supporting plate at intervals.

In one embodiment, the collecting frame further comprises a clamping assembly used for limiting the collecting frame, the clamping assembly comprises a clamping block, a push rod and a fourth spring, the push rod is connected to the middle of the front side of the collecting frame in a sliding mode, the clamping block is connected to the top of the push rod, the clamping block clamps the upper portion of the front side of the supporting frame, the fourth spring is wound on the upper portion of the push rod, and two ends of the fourth spring are connected with the clamping block and the collecting frame respectively.

In one embodiment, the rear side of the top of the fixture block is a slope.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the motor is used as a driving force, the laser cutting head can be driven to reciprocate left and right, so that the lithium battery pole piece can be cut, and the roller can be driven to intermittently rotate, so that the lithium battery pole piece can be driven to intermittently forward transmit, the automatic feeding function is completed, the time and labor are saved, and the working efficiency is improved.

2. When the dust collector is started, the dust collector can absorb the dust remained on the lithium battery pole piece through the dust collection pipe and the suction head, so that the lithium battery pole piece is prevented from being polluted by the dust.

3. When the second wedge-shaped block moves rightwards, the fixing plate can be driven to move downwards to press the lithium battery pole piece, so that the lithium battery pole piece can be prevented from moving randomly to affect the cutting effect.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the installation of the moving assembly of the present invention.

Figure 3 is a schematic view of the installation of the suction assembly of the present invention.

Fig. 4 is a schematic view of the installation of the pushing assembly of the present invention.

Fig. 5 is an enlarged schematic view of the structure at a in the present invention.

Fig. 6 is a perspective view of a portion of the pushing assembly of the present invention.

Fig. 7 is a schematic view of the installation of the fixing assembly of the present invention.

Fig. 8 is a perspective view of a portion of the fixing member of the present invention.

FIG. 9 is a schematic view of the assembly of the brushing assembly and the seizure assembly of the present invention.

Figure 10 is a schematic view, partially in section, of a brush assembly according to the present invention.

Figure 11 is a schematic perspective view of a portion of the jamming assembly of the present invention.

Labeled in the figure as: 1-table, 2-first guide bar, 3-support block, 4-laser cutting head, 5-moving assembly, 51-motor, 52-screw, 53-nut, 6-dust-absorbing assembly, 61-support frame, 62-collection frame, 63-handle, 64-dust-absorbing device, 65-dust-absorbing tube, 66-suction head, 7-pushing assembly, 71-first support plate, 72-roller, 73-gear, 74-grooved drum, 75-first wedge block, 76-belt pulley, 77-driving belt, 78-contact rod, 79-first spring, 8-fixing assembly, 81-second guide bar, 82-connecting rod, 83-fixing plate, 84-second spring, 85-connecting rod, 86-second block, 87-third spring, 9-brushing assembly, 91-magnet, 92-second support plate, 93-brush wire, 10-assembly, 101-fixture block, 102-push rod, 103-fourth wedge spring.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

Example 1

The utility model provides a lithium battery pole piece's dust removal cutting device, refer to fig. 1-6, including workstation 1, first guide arm 2, supporting shoe 3, laser cutting head 4, remove subassembly 5, dust absorption subassembly 6 and promotion subassembly 7, the welding has two first guide arms 2 in the middle of the upper portion of workstation 1, slidingtype is equipped with supporting shoe 3 between the left side of two first guide arms 2, the bottom of supporting shoe 3 is connected with laser cutting head 4, can cut lithium battery pole piece when laser cutting head 4 sends the laser, the upper portion of workstation 1 is equipped with removes subassembly 5, the top front side of workstation 1 is equipped with dust absorption subassembly 6, the rear side of workstation 1 is equipped with promotion subassembly 7.

Referring to fig. 1 and 2, the moving assembly 5 includes a motor 51, a screw rod 52 and a nut 53, the motor 51 is bolted to the left middle of the upper part of the workbench 1, the screw rod 52 is rotatably connected to the upper middle of the workbench 1, the screw rod 52 is located above the first guide rod 2, the left end of the screw rod 52 is connected to an output shaft of the motor 51, the nut 53 is threadedly connected to the left side of the screw rod 52, the bottom of the nut 53 is connected to the top of the supporting block 3, the motor 51 is started, the nut 53 can be driven to rotate positively and negatively, and therefore the nut 53 can be driven, the supporting block 3 and the laser cutting head 4 can be moved leftwards and rightwards.

Referring to fig. 1 and 3, the dust collection assembly 6 includes a support frame 61, a collection frame 62, a handle 63, a dust collector 64, a dust collection pipe 65 and a suction head 66, the support frame 61 is connected to the front side of the lower portion of the workbench 1, the collection frame 62 is connected to the support frame 61 in an inner sliding manner, the handle 63 is welded to the lower portion of the front side of the collection frame 62, the dust collector 64 is connected to and communicated with the middle of the top of the support frame 61, the dust collection pipe 65 is connected to and communicated with the top of the dust collector 64, the front portion of the workbench 1 is penetrated through the upper portion of the dust collection pipe 65, the suction head 66 is connected to and communicated with the upper portion of the dust collection pipe 65, the dust collector 64 is started, and residual dust on the lithium battery pole pieces can be absorbed through the dust collection pipe 65 and the suction head 66.

Referring to fig. 1, 4, 5 and 6, the pushing assembly 7 includes a first support plate 71, a roller 72, a gear 73, a grooved drum 74, a first wedge 75, a belt pulley 76, a transmission belt 77, a contact rod 78 and a first spring 79, the first support plate 71 is welded on the upper portion of the rear side of the workbench 1 in bilateral symmetry, the roller 72 is rotatably connected to the upper and lower sides of the space between the two first support plates 71, the roller 72 rotates to forward the lithium battery pole pieces, the gear 73 is connected to the right side of the roller 72, the two gears 73 are meshed with each other, the grooved drum 74 is rotatably connected to the middle of the upper portion of the workbench 1, the grooved drum 74 is located at the rear side of the lead screw 52, the first wedge 75 is connected to the right portion of the front side of the grooved drum 74, the belt pulley 76 is connected to the right side of the roller 72 on the right side and upper side of the grooved drum 74, the transmission belt 77 is wound between the two belt pulleys 76, the contact rod 78 is connected to the rear end of the contact rod 78, the contact rod 78 is connected to the grooved drum 74, the contact rod 78 slides to the right side, and the contact rod 78 is connected to the first spring 79.

When people need to use the device, firstly, one end of a lithium battery pole piece is placed between the two rollers 72, then the lithium battery pole piece is pushed forwards, the position, needing to be cut, of the lithium battery pole piece is located under the laser cutting head 4, then the motor 51, the dust collector 64 and the laser cutting head 4 are started, the intermittent forward and reverse rotation of the output shaft of the motor 51 is controlled, then the intermittent laser emission of the laser cutting head 4 is controlled, when the output shaft of the motor 51 rotates forwards, the lead screw 52 is driven to rotate forwards, the nut 53 is driven to move rightwards, the nut 53 drives the supporting block 3 to move rightwards, the first guide rod 2 plays a guiding role, the supporting block 3 drives the laser cutting head 4 and the contact rod 78 to move rightwards, at the moment, the laser cutting head 4 emits laser, and therefore, the laser cutting can be carried out on the lithium battery pole piece, when the contact rod 78 is contacted with the first wedge-shaped block 75, the first wedge block 75 presses the contact rod 78 to move forward, the first spring 79 is compressed, when the contact rod 78 is separated from the first wedge block 75, the first spring 79 restores to the original state to drive the contact rod 78 to move backward and reset, when the nut 53 moves to the rightmost side, the laser cutting head 4 does not emit laser, simultaneously, the output shaft of the motor 51 rotates reversely to drive the screw rod 52 to rotate reversely, thereby driving the nut 53 to move leftward and reset, the nut 53 drives the supporting block 3 to move leftward and reset, the supporting block 3 drives the laser cutting head 4 and the contact rod 78 to move leftward and reset, when the contact rod 78 is contacted with the first wedge block 75, under the guiding action of the first wedge block 75, the contact rod 78 can drive the grooved drum 74 to rotate, the grooved drum 74 can drive the roller 72 at the upper side and the gear 73 at the upper side to rotate through the belt pulley 76 and the transmission belt 77, thereby driving the gear 73 at the lower side and the roller 72 at the lower side to rotate reversely, cylinder 72 can drive lithium-ion battery pole piece forward motion, make the position motion of next needs cutting of lithium-ion battery pole piece under laser cutting head 4, dust catcher 64 can absorb remaining dust on the lithium-ion battery pole piece through dust absorption pipe 65 and suction head 66, and transmit the dust to collecting frame 62, so reciprocal, can carry out intermittent type nature equidistance cutting to lithium-ion battery pole piece automatically, then collect the lithium-ion battery pole piece that the cutting is good by the manual work, when people need not use the device, close motor 51, dust catcher 64 and laser cutting head 4, then pulling handle 63 forward, drive and collect frame 62 forward motion, then the manual work will be collected frame 62 clean up, at last will collect frame 62 put back the normal position can.

Example 2

On the basis of embodiment 1, referring to fig. 1, 7 and 8, the lithium battery support further includes a fixing assembly 8, the fixing assembly 8 includes a second guide rod 81, a connecting rod 82, a fixing plate 83, a second spring 84, a connecting rod 85, a second wedge-shaped block 86 and a third spring 87, the second guide rods 81 are welded on the left side and the right side of the front side and the rear side of the top of the workbench 1, the connecting rod 82 is connected between the two corresponding left and right second guide rods 81 in a sliding manner, the fixing plate 83 is connected on the left side and the right side of the bottom of the connecting rod 82, the fixing plate 83 moves downward to press the lithium battery pole pieces, the second spring 84 is wound on the second guide rods 81, two ends of the second spring 84 are respectively connected with the workbench 1 and the connecting rod 82, the tops of the two connecting rods 82 are respectively connected with the connecting rod 85, lower portions of the front side and the rear side of the supporting block 3 are respectively connected with the second wedge-shaped block 86, the two second wedge-shaped blocks 86 are respectively contacted with the connecting rods 85 on the front side and the supporting block 3, and the third spring 87 are respectively connected between the inner side of the supporting block 86.

When the supporting block 3 moves rightwards, the second wedge-shaped block 86 is driven to move rightwards, the second wedge-shaped block 86 extrudes the connecting rod 85 to move downwards, the connecting rod 82 and the fixing plate 83 are driven to move downwards, the second spring 84 is compressed, the fixing plate 83 can press lithium battery pole pieces, the lithium battery pole pieces are prevented from moving randomly to affect the cutting effect, when the second wedge-shaped block 86 is separated from the connecting rod 85, the second spring 84 restores the original state, the connecting rod 85, the connecting rod 82 and the fixing plate 83 are driven to move upwards to reset, when the supporting block 3 moves leftwards to reset, the second wedge-shaped block 86 is driven to move leftwards to reset, when the second wedge-shaped block 86 is in contact with the connecting rod 85, the connecting rod 85 extrudes the second wedge-shaped block 86 to move inwards, the third spring 87 is compressed, and when the second wedge-shaped block 86 is separated from the connecting rod 85, the third spring 87 restores the original state, and the second wedge-shaped block 86 is driven to move outwards to reset.

Referring to fig. 1, 9 and 10, the lithium battery pole piece cleaning device further comprises a brushing assembly 9, the brushing assembly 9 comprises magnets 91, a second support plate 92 and brush wires 93, the second support plate 92 is welded at the bottom of the suction head 66 and communicated with the bottom of the suction head, the magnets 91 are connected to the left side and the right side of the upper portion of the second support plate 92 and the left side and the right side of the lower portion of the suction head 66, the two adjacent magnets 91 are in mutual contact, the brush wires 93 are connected to the bottom of the second support plate 92 at intervals, and can be in contact with the brush wires 93 when the lithium battery pole piece moves forwards, and the brush wires 93 can clean the lithium battery pole piece.

When lithium-ion battery pole piece during the forward motion, brush silk 93 can contact with lithium-ion battery pole piece top, thereby can brush the dust that is not siphoned away by suction head 66, further improvement is to lithium-ion battery pole piece's clearance effect, when people need wash brush silk 93, can with second backup pad 92 down pulling, two magnets 91 of drive downside move down, make two close magnet 91 separation, then people can take second backup pad 92 away, wash brush silk 93 again, after the washing is accomplished, put back the normal position with second backup pad 92, make two close magnet 91 attract each other again, magnetic force through magnet 91 can fix second backup pad 92.

Referring to fig. 1, 9 and 11, still including blocking the subassembly 10, blocking the subassembly 10 including fixture block 101, push rod 102 and fourth spring 103, collect the front side middle part of frame 62 and be connected with push rod 102 slidablely, the top of push rod 102 is connected with fixture block 101, fixture block 101 blocks the front side upper portion of carriage 61 to can carry on spacingly to collecting frame 62, the upper portion of push rod 102 is around having fourth spring 103, the both ends of fourth spring 103 are connected with fixture block 101 and collection frame 62 respectively.

When people need take out the collection frame 62, at first press down the push rod 102, drive the fixture block 101 to move down, the compression of the fourth spring 103, make the fixture block 101 loosen the support frame 61, then can pull the collection frame 62 forward, drive the fixture block 101 and the push rod 102 to move forward, loosen the push rod 102 again, the restitution of the fourth spring 103 drives the push rod 102 and the fixture block 101 to move up and reset, then can clear up the collection frame 62, after the clearing is completed, put the collection frame 62 back to the original position, drive the push rod 102 and the fixture block 101 to reset, when the fixture block 101 contacts with the support frame 61, the support frame 61 can extrude the fixture block 101 to move down, the compression of the fourth spring 103, after the collection frame 62 completely resets, the restitution of the fourth spring 103 drives the fixture block 101 to move up and reset and loosen the support frame 61 again, thereby the position of the collection frame 62 can be fixed, and the random occurrence of the collection frame 62 is avoided.

The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims

1. The utility model provides a lithium battery pole piece's dust removal cutting device, including workstation (1), first guide arm (2), supporting shoe (3) and laser cutting head (4), the upper portion intermediate junction of workstation (1) has two first guide arms (2), slidingtype is equipped with supporting shoe (3) between the left side of two first guide arms (2), the bottom of supporting shoe (3) is connected with laser cutting head (4) that are used for carrying out the cutting to lithium battery pole piece, a serial communication port, still including removal subassembly (5), dust absorption subassembly (6) and promotion subassembly (7), the upper portion of workstation (1) is equipped with removal subassembly (5) that are used for driving laser cutting head (4) and remove about, the top front side of workstation (1) is equipped with dust absorption subassembly (6) that are used for removing dust to lithium battery pole piece, the rear side of workstation (1) is equipped with promotion subassembly (7) that are used for carrying out the material loading to the lithium battery pole piece.

2. The dust removing and cutting device for the lithium battery pole piece, as recited in claim 1, wherein the moving assembly (5) comprises a motor (51), a lead screw (52) and a nut (53), the motor (51) is connected to the left middle of the upper portion of the worktable (1), the lead screw (52) is rotatably connected to the upper middle of the worktable (1), the lead screw (52) is located above the first guide rod (2), the left end of the lead screw (52) is connected to the output shaft of the motor (51), the nut (53) is threadedly connected to the left side of the lead screw (52), and the bottom of the nut (53) is connected to the top of the support block (3).

3. The lithium battery pole piece dedusting and cutting device as claimed in claim 2, wherein the dust collection assembly (6) comprises a support frame (61), a collection frame (62), a handle (63), a dust collector (64), a dust collection pipe (65) and a suction head (66), the support frame (61) is connected to the front side of the lower portion of the workbench (1), the collection frame (62) is connected to the support frame (61) in an inner sliding manner, the handle (63) is connected to the lower portion of the front side of the collection frame (62), the dust collector (64) is connected and communicated with the middle portion of the top of the support frame (61), the dust collection pipe (65) is connected and communicated with the top of the dust collector (64), the upper portion of the dust collection pipe (65) penetrates through the front portion of the workbench (1), and the suction head (66) is connected and communicated with the middle portion of the upper portion of the dust collection pipe (65).

4. The dust removing and cutting device for the pole piece of the lithium battery as claimed in claim 3, wherein the pushing assembly (7) comprises a first supporting plate (71), a roller (72), a gear (73) and a groove drum (74), first wedge (75), belt pulley (76), driving belt (77), contact lever (78) and first spring (79), the rear side upper portion bilateral symmetry of workstation (1) is connected with first backup pad (71), upper and lower both sides between two first backup pad (71) all rotary type is connected with cylinder (72), the right side of cylinder (72) all is connected with gear (73), two gear (73) intermeshing, the upper portion of workstation (1) middle rotary type is connected with grooved drum (74), grooved drum (74) is located the rear side of lead screw (52), the front side right part of grooved drum (74) is connected with first wedge (75), the right side of grooved drum (74) and cylinder (72) right side of upside all are connected with belt pulley (76), around driving belt (77) between two belt pulleys (76), the rear side sliding type of nut (53) is connected with contact lever (78), the rear end of contact lever (78) is connected with interior sliding in grooved drum (74), contact lever (78) moves to the right and can contact with first wedge (75), contact lever (78) contact lever (79) and first spring (79) between the front side and first spring (53).

5. The lithium battery pole piece dedusting and cutting device as claimed in claim 4, further comprising a fixing assembly (8) for compressing the lithium battery pole piece, wherein the fixing assembly (8) comprises a second guide rod (81), a connecting rod (82), a fixing plate (83), a second spring (84), a connecting rod (85), a second wedge-shaped block (86) and a third spring (87), the left side and the right side of the front side and the rear side of the top of the workbench (1) are both connected with the second guide rod (81), the connecting rod (82) is connected between the two corresponding second guide rods (81) in a sliding manner, the left side and the right side of the bottom of the connecting rod (82) are both connected with the fixing plate (83), the second spring (84) is wound on the second guide rod (81), two ends of the second spring (84) are respectively connected with the workbench (1) and the connecting rod (82), the tops of the two connecting rods (82) are both connected with the connecting rod (85), the lower parts of the front side and the rear side of the supporting block (3) are both connected with the second wedge-shaped block (86), and the inner side of the second wedge-shaped block (87) are both connected with the supporting block (87).

6. The dust removing and cutting device for the lithium battery pole pieces, as recited in claim 5, further comprising a brushing assembly (9) for cleaning the lithium battery pole pieces, wherein the brushing assembly (9) comprises a magnet (91), a second support plate (92) and brush wires (93), the second support plate (92) is arranged at the bottom of the suction head (66), the magnets (91) are connected to the left and right sides of the upper portion of the second support plate (92) and the left and right sides of the lower portion of the suction head (66), two adjacent magnets (91) are in contact with each other, and the brush wires (93) are connected to the bottom of the second support plate (92) at intervals.

7. The lithium battery pole piece dedusting and cutting device as claimed in claim 6, further comprising a clamping assembly (10) for limiting the collecting frame (62), wherein the clamping assembly (10) comprises a clamping block (101), a push rod (102) and a fourth spring (103), the middle of the front side of the collecting frame (62) is slidably connected with the push rod (102), the top of the push rod (102) is connected with the clamping block (101), the clamping block (101) clamps the upper portion of the front side of the supporting frame (61), the upper portion of the push rod (102) is wound with the fourth spring (103), and two ends of the fourth spring (103) are respectively connected with the clamping block (101) and the collecting frame (62).

8. The dust removing and cutting device for the lithium battery pole piece, as claimed in claim 7, wherein the back side of the top of the fixture block (101) is an inclined plane.