Clamping device and laser cutting equipment

Abstract

The utility model discloses a clamping device and laser cutting equipment, the clamping device is used for fixing a pole piece, the pole piece is provided with a first side face and a second side face which are opposite to each other, the clamping device comprises a box body defining a cutting cavity; the clamping roller group is connected to the box body and is used for clamping the pole piece; at least one part of the adsorption assembly is arranged in the cutting cavity, the adsorption assembly and the clamping roller set are oppositely arranged in the first direction, and the adsorption assembly comprises an adsorption face; the auxiliary roller is connected to the box body, the auxiliary roller and the clamping roller set are arranged in a spaced mode in the first direction, and the auxiliary roller comprises an abutting edge; in the second direction, a first distance is formed between the axis of the auxiliary roller and the adsorption face, a second distance is formed between the axis of the auxiliary roller and the abutting edge, and the first distance is smaller than the second distance. According to the clamping device, shaking of the pole piece in the cutting process can be reduced, the laser cutting effect is improved, and the laser cutting equipment with the clamping device also has the advantages.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece cutting, in particular to a clamping device and a laser cutting device. Background Art

[0002] During the production process of pole pieces, it is necessary to process and cut the pole pieces. In related technologies, laser cutting is often used to cut the pole pieces to avoid problems such as burrs or insufficient dimensions during cutting. However, when the current laser cutting device cuts the pole pieces, the pole pieces are prone to jitter, which affects the laser cutting effect. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a clamping device that can reduce the jitter of the pole piece during cutting and improve the laser cutting effect.

[0004] The utility model also provides a laser cutting device with the above clamping device.

[0005] The clamping device according to the first aspect embodiment of the utility model is used to fix the pole piece and includes:

[0006] A box body that defines a cutting cavity;

[0007] A feeding roller group connected to the box body and used to clamp the pole piece;

[0008] An adsorption component, at least a part of which is arranged in the cutting cavity and is arranged opposite to the feeding roller group in a first direction, the adsorption component includes an adsorption surface; and

[0009] An auxiliary roller connected to the box body and arranged at an interval from the feeding roller group in the first direction, the auxiliary roller includes a supporting edge;

[0010] Wherein, along a second direction, there is a first distance between the axis of the auxiliary roller and the adsorption surface, and a second distance between the axis of the auxiliary roller and the supporting edge, and the first distance is less than the second distance.

[0011] The clamping device according to the embodiment of the utility model has at least the following beneficial effects: Through the joint cooperation of the feeding roller group, the adsorption component and the auxiliary roller, the upper, middle and lower parts of the pole piece are fixed respectively during the cutting of the pole piece. And when the pole piece is transported to the auxiliary roller, due to the first distance being less than the second distance, after the supporting edge of the auxiliary roller abuts against the pole piece, the pole piece will generate a deflecting angle towards the adsorption surface, and the adsorption surface and the supporting edge will further fix the pole piece on both sides of the pole piece, so that the pole piece has a stable cutting area in the cutting cavity, thereby reducing the jitter of the pole piece and improving the stability of the pole piece and the laser cutting effect of the pole piece.

[0012] According to some embodiments of the present utility model, it further includes an impurity removing device, and the impurity removing device includes a jetting member. The jetting member is connected to the box body and is configured to jet air towards the inside of the cutting cavity to blow away impurities.

[0013] According to some embodiments of the present utility model, the jetting member is provided with jet holes on one side facing the box body, and an air inlet channel communicating with the jet holes is provided on the side of the jetting member different from the jet holes. The air inlet channel is used to connect an external jetting device.

[0014] According to some embodiments of the present utility model, the impurity removing device includes at least two jetting members. At least two jetting members are arranged oppositely along the second direction. When the pole piece is cut in the cutting cavity, at least two jetting members are respectively used to blow away impurities on both sides of the pole piece.

[0015] According to some embodiments of the present utility model, it further includes a first suction pipe. The box body has a first end and a second end along the jetting direction of the jetting member. The jetting member is arranged at the first end, and the first suction pipe is arranged at the second end and communicates with the cutting cavity.

[0016] According to some embodiments of the present utility model, the clamping roller group includes a first roller and a second roller. The first roller and the second roller are arranged at intervals along the second direction and have different setting heights along the first direction.

[0017] According to some embodiments of the present utility model, the adsorption assembly further includes a suction cup and a second suction pipe. The adsorption surface is arranged on the suction cup. The suction cup is arranged in the cutting cavity. One end of the second suction pipe is connected to the suction cup, and the other end is adapted to be connected to an external negative pressure air source for extracting the gas in the suction cup.

[0018] According to some embodiments of the present utility model, the clamping roller group includes a first roller. The first roller has a clamping edge. Along the second direction, a third distance is provided between the axis of the first roller and the adsorption surface, and a fourth distance is provided between the axis of the first roller and the clamping edge. The third distance is less than the fourth distance.

[0019] The laser cutting device according to the second aspect embodiment of the present utility model includes: a laser cutter and the clamping device described in any of the above embodiments. The box body is provided with a first window communicating with the cutting cavity, and the laser cutter cuts the pole piece through the first window.

[0020] The laser cutting device according to the embodiment of the present utility model has at least the following beneficial effects: Compared with the existing laser cutting devices, by using the above clamping device, a relatively stable cutting area can be provided for the pole piece during the cutting process, reducing the jitter of the pole piece and improving the effect of laser cutting.

[0021] According to some embodiments of the present utility model, the box body further includes a second window and a baffle. The second window is disposed opposite to the first window, and the baffle is disposed at the second window to block the laser from emitting from the second window.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0023] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0024] Figure 1 is a schematic diagram of the clamping device in the embodiment of the present utility model;

[0025] Figure 2 is a schematic diagram of the clamping device in the embodiment of the present utility model;

[0026] Figure 3 is a top view schematic diagram of the clamping device in the embodiment of the present utility model;

[0027] Figure 4 is in the embodiment of the present utility model Figure 3 is a cross-sectional schematic diagram taken along A-A;

[0028] Figure 5 is a schematic diagram of the clamping device in the embodiment of the present utility model;

[0029] Figure 6 is a schematic diagram of the impurity removal device in the embodiment of the present utility model;

[0030] Figure 7 is a schematic diagram of the laser cutting device in the embodiment of the present utility model;

[0031] Figure 8 is a schematic diagram of the laser cutting device in the embodiment of the present utility model.

[0032] Reference Signs:

[0033] Clamping device 100; box body 110; cutting cavity 111; first window 112; second window 113; baffle 114; clamping roller group 120; first roller 121; clamping edge 1211; second roller 122; adsorption component 130; suction cup 131; adsorption surface 1311; second suction pipe 132; auxiliary roller 140; abutting edge 141; impurity removal device 150; air jet part 151; air jet hole 1511; air inlet channel 1512; control part 152; first suction pipe 160;

[0034] Pole piece 200; first side 210; second side 220;

[0035] Laser cutting equipment 300; laser cutter 310;

[0036] First distance L1; second distance R1; third distance L2; fourth distance R2. Detailed implementation mode

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0038] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0041] In the description of the present utility model, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] Referring to the accompanying drawings of the specification below, the clamping device according to the first aspect embodiment of the present utility model will be described. In specific applications, the clamping device involved in the present application can be applied to the ceramic area of the cutting pole piece, or can be used in laser processes such as processing the tab of the pole piece that require fixing the pole piece. For the convenience of understanding, this specification will give an exemplary description through one of the processes (such as cutting the ceramic area of the pole piece).

[0043] The embodiment of the present utility model provides a clamping device for fixing a pole piece when cutting the pole piece. Among them, the conveying direction of the pole piece is defined as the first direction, and the direction perpendicular to the conveying direction of the pole piece is defined as the second direction. Refer to Figure 5 As shown, the pole piece 200 includes a first side surface 210 and a second side surface 220. Refer to Figures 1 to 4 As shown, the clamping device 100 includes a box body 110, a clamping roller set 120, an adsorption assembly 130, and an auxiliary roller 140. Among them, the box body 110 defines a cutting cavity 111, and the cutting cavity 111 is used to accommodate the pole piece 200, and the cutting operation of the pole piece 200 is carried out in the cutting cavity 111. The clamping roller set 120 is connected to the box body 110, and the clamping roller set 120 is used to clamp the pole piece 200 to prevent the pole piece 200 from shaking. Part of the adsorption assembly 130 is arranged in the cutting cavity 111, and the adsorption assembly 130 and the clamping roller set 120 are arranged opposite to each other in the first direction. The adsorption assembly 130 includes an adsorption surface 1311, and the adsorption surface 1311 is used to adsorb the first side surface 210 of the pole piece 200. The auxiliary roller 140 is connected to the box body 110 and is arranged at an interval from the clamping roller set 120 in the first direction. The auxiliary roller 140 includes a resisting edge 141, that is, the outer periphery of the auxiliary roller 140 in contact with the pole piece 200. The resisting edge 141 is used to abut against the second side surface 220 of the pole piece 200. Among them, along the second direction, there is a first distance L1 between the axis of the auxiliary roller 140 and the adsorption surface 1311, and there is a second distance R1 between the axis of the auxiliary roller 140 and the resisting edge 141. The first distance L1 is less than the second distance R1. Therefore, when the pole piece 200 contacts the resisting edge 141 of the auxiliary roller 140, the resisting edge 141 will abut against the second side surface 220 of the pole piece 200 and cause the pole piece 200 to deflect toward the side of the adsorption surface 1311 to further fix the pole piece 200.

[0044] Specifically, when the pole piece 200 is transported to the clamping device 100 for cutting, the pole piece 200 will sequentially pass through the clamping roller set 120, the adsorption assembly 130, and the auxiliary roller 140. The clamping roller set 120, the adsorption assembly 130, and the auxiliary roller 140 cooperate together to fix the upper, middle, and lower parts of the pole piece 200 respectively during the cutting of the pole piece 200, thereby preventing the pole piece 200 from shaking. At the same time, since the first distance L1 is less than the second distance R1, when the pole piece 200 is transported to the abutting edge 141 of the auxiliary roller 140, the part of the pole piece 200 in contact with the abutting edge 141 is offset relative to the part adsorbed by the adsorption surface 1311. The adsorption surface 1311 and the auxiliary roller 140 will further fix the pole piece 200 on the first side 210 and the second side 220 of the pole piece 200 respectively, so that the pole piece 200 has a stable cutting area. After the auxiliary roller 140 causes the pole piece 200 to shift, it will make the area of the pole piece 200 that needs to be laser cut more tense, thereby reducing the shaking of the pole piece 200 and improving the laser cutting accuracy performance and cutting effect.

[0045] In some embodiments (not shown in the figure), the order in which the pole piece 200 passes through the clamping roller set 120, the adsorption assembly 130, and the auxiliary roller 140 can be changed. For example: the pole piece 200 can first pass through the auxiliary roller 140, followed by the adsorption assembly 130, and finally the clamping roller set 120, or it can also pass through the clamping roller set 120, the auxiliary roller 140, and the adsorption assembly 130 in sequence, etc.

[0046] In some embodiments, refer to Figures 1 to 3 As shown, the clamping device 100 further includes a cleaning device 150. The cleaning device 150 includes a jetting member 151. The jetting member 151 is connected to the box body 110, and the jetting member 151 is used to jet air into the interior of the cutting chamber 111 to blow off the impurities on the pole piece 200. Specifically, during the cutting process of the pole piece 200, impurities such as debris and dust will be generated. By connecting the jetting member 151 to the box body 110, it is possible to avoid the situation where impurities float in the accommodating cavity and block the laser light, affecting the cutting effect of the pole piece 200. Further, in some embodiments, refer to Figure 6 As shown, the cleaning device 150 further includes a control member 152. The control member 152 is connected to the jetting member 151. The control member 152 is used to control the working power of the jetting member 151 to change the jetting rate of the jetting member 151 according to the cutting condition of the pole piece 200 and the generation amount of impurities in the cutting chamber 111, so as to ensure the cutting effect of the pole piece 200.

[0047] In some embodiments, refer to Figure 1 、 Figure 2 and Figure 6As shown, on one side of the jetting member 151 facing the box body 110, there are jetting holes 1511. The jetting member 151 jets gas into the cutting cavity 111 through the jetting holes 1511. On the side of the jetting member 151 different from the jetting holes 1511, there is an air inlet channel 1512. The air inlet channel 1512 is communicated with the jetting holes 1511, and the air inlet channel 1512 is used to connect an external jetting device. Specifically, at least one side surface of the jetting member 151 is connected to the box body 110. The side surface facing the cutting cavity 111 (i.e., the side surface connected to the box body 110) is provided with jetting holes 1511. On the other side surface of the jetting member 151, there is an air inlet channel 1512. The air inlet channel 1512 and the jetting holes 1511 are not on the same side surface. One end of the air inlet channel 1512 is communicated with the jetting holes 1511, and the other end is connected to an external jetting device. The gas is jetted out by the external jetting device, passes through the air inlet channel 1512 and is jetted into the cutting cavity 111 from the jetting holes 1511 to blow out the impurities in the cutting cavity 111.

[0048] In some embodiments, referring to Figure 1 and Figure 2 As shown, the impurity removing device 150 includes at least two jetting members 151. The at least two jetting members 151 are oppositely arranged along a first direction. When the pole piece 200 is cut in the cutting cavity 111, the at least two jetting members 151 are respectively used to blow out the impurities on the first side surface 210 and the second side surface 220. Specifically, in this embodiment, the number of the jetting members 151 is two. The two jetting members 151 are connected to the same side of the box body 110, and the two jetting members 151 are arranged at intervals along a second direction. When the pole piece 200 is conveyed into the cutting cavity 111 and fixed for cutting, among the two jetting members 151, one jetting member 151 jets gas towards the first side surface 210 of the pole piece 200, and the other jetting member 151 jets gas towards the second side surface 220 of the pole piece 200, thereby improving the impurity removing efficiency in the cutting cavity 111 and enhancing the cutting effect of the pole piece 200. In other embodiments (not shown in the figure), the number of the jetting members 151 can also be other numerical features, such as: one. There are multiple jetting holes 1511 on the jetting member 151. Only setting one jetting member 151 can symmetrically distribute the jetting holes 1511 on both sides of the pole piece 200, so that when the pole piece 200 is cut, the jetting holes 1511 can jet gas towards the first side surface 210 and the second side surface 220 of the pole piece 200 simultaneously to blow out the impurities; or three or other multiple numerical features.

[0049] In some embodiments, referring to Figure 1 and Figure 3As shown, the clamping device 100 further includes a first suction pipe 160. The box body 110 has a first end and a second end along the jet direction of the jetting member 151. The jetting member 151 is arranged at the first end of the box body 110, and the first suction pipe 160 is arranged at the second end of the box body 110, and the first suction pipe 160 communicates with the cutting cavity 111. Specifically, when the jetting member 151 is connected to the box body 110 for jetting, the box body 110 is defined with a first end and a second end according to the jet direction of the jetting member 151. Among them, the position where the jetting member 151 is located is the first end of the box body 110, and the first suction pipe 160 is arranged at the second end of the box body 110, and the first suction pipe 160 communicates with the cutting cavity 111. When the jetting member 151 blows the impurities to the second end, the first suction pipe 160 will be connected to an external suction device to suck the impurities at the second end out of the cutting cavity 111. The first suction pipe 160 and the jetting member 151 cooperate with each other to remove the impurities in the cutting cavity 111, ensuring that the laser beam is normally irradiated on the pole piece 200 for cutting.

[0050] In some embodiments, referring to Figure 4 and Figure 5 As shown, the clamping roller set 120 includes a first roller 121 and a second roller 122. The first roller 121 and the second roller 122 are arranged at intervals along the second direction, and the first roller 121 and the second roller 122 have different installation heights relative to the box body 110. Specifically, the first roller 121 and the second roller 122 are arranged at intervals along the second direction, so that there is a clamping space between the first roller 121 and the second roller 122. When the pole piece 200 is transported to the clamping roller set 120, the pole piece 200 will be arranged in the clamping space, so that the first roller 121 and the second roller 122 clamp the pole piece 200. Further, the first roller 121 and the second roller 122 have different installation heights in the first direction, that is: the first roller 121 and the second roller 122 are arranged at different heights, and the first roller 121 and the second roller 122 have different heights in the vertical direction. This setting can increase the clamping area of the first roller 121 and the second roller 122 on the pole piece 200, and can improve the tightness of the pole piece 200 and enhance the clamping effect of the pole piece 200. In some embodiments (not shown in the figure), the first roller 121 and the second roller 122 can also be arranged in other ways, such as: the first roller 121 and the second roller are arranged flush along the second direction, that is, the first roller 121 and the second roller 122 are at the same height from the box body 110.

[0051] In some embodiments, referring to Figures 1 to 5As shown, the adsorption assembly 130 includes a suction cup 131 and a second suction pipe 132. The suction cup 131 is disposed in the cutting cavity 111. One end of the second suction pipe 132 is connected to the suction cup 131, and the other end is adapted to connect to an external negative pressure air source for extracting the gas in the suction cup 131. Specifically, the suction cup 131 has an adsorption surface for adsorbing the first side surface 210 of the electrode sheet 200. One end of the second suction pipe 132 is connected to the suction cup 131, and the other end extends outside the box body 110 to connect to an external negative pressure air source. When the external negative pressure air source operates, the external negative pressure air source extracts the gas in the suction cup 131 through the first suction pipe 160. After the gas is extracted, a negative pressure is generated on the adsorption surface of the suction cup 131, and the adsorption surface adsorbs the first side surface 210 of the electrode sheet 200 through this negative pressure, so as to cooperate with the clamping roller group 120 to fix the electrode sheet 200.

[0052] In some embodiments, referring to Figure 4 As shown, the clamping roller group 120 includes a first roller 121 and a second roller 122. The first roller 121 has a clamping edge 1211, that is, the outer periphery in contact with the electrode sheet 200. Along the second direction, there is a third distance L2 between the axis of the first roller 121 and the adsorption surface 1311, and a fourth distance R2 between the axis of the first roller and the clamping edge 1211. The third distance L2 is less than the fourth distance R2. Specifically, when the electrode sheet 200 is located in the gap between the first roller 121 and the second roller 122, the clamping edge 1211 of the first roller 121 abuts against the second side surface 220 and causes the electrode sheet 200 to deflect towards the adsorption surface 1311, so that the part of the electrode sheet 200 in contact with the clamping edge 1211 generates a deflected angle relative to the part adsorbed by the adsorption surface 1311, thereby further fixing the electrode sheet 200.

[0053] Next, with reference to the accompanying drawings of the specification, the laser cutting device 300 according to the second aspect embodiment of the present invention will be described. Referring to Figure 7 and Figure 8 As shown, the laser cutting device 300 includes a laser cutter 310 and the clamping device 100 described in any of the above embodiments. Among them, the box body 110 is provided with a first window 112 communicating with the cutting cavity 111, and the laser cutter 310 cuts the electrode sheet 200 through the first window 112. Specifically, when the electrode sheet 200 is located on the clamping device 100, the clamping roller group 120, the adsorption assembly 130 and the auxiliary roller 140 cooperate together. The three respectively fix the upper, middle and lower parts of the electrode sheet 200. At the same time, the adsorption assembly 130 and the auxiliary roller 140 are connected to the first side surface 210 and the second side surface 220 of the electrode sheet 200, and the two cooperate with each other to cause the electrode sheet 200 to deflect, increasing the tightness of the electrode sheet 200 and making the electrode sheet 200 have a relatively stable ceramic area. The laser cutter 310 emits a laser beam, and the laser beam cuts the ceramic area of the electrode sheet 200 through the first window 112.

[0054] In some embodiments, referring to Figure 7 and Figure 8 as shown, the box body 110 is further provided with a second window 113 and a baffle 114. The second window 113 is disposed opposite to the first window 112, and the cutting state of the pole piece 200 in the cutting cavity 111 can be observed through the second window 113. The baffle 114 is disposed at the second window 113 to block the laser from emitting from the second window 113. Disposing the baffle 114 at the second window 113 can prevent the laser beam from emitting from the second window 113 after the laser beam cuts a certain position of the pole piece 200, because there is no pole piece 200 in the cutting cavity 111 to block the laser beam.

[0055] In some embodiments (not shown in the figure), the box body 110 may not include the second window 113 and the baffle 114, and the relative position with the first window 112 is set to a closed state, thereby avoiding the emission of the laser beam. At the same time, the box body 110 may adopt a transparent and visible material on some outer walls, such as acrylic, glass, etc., and the cutting condition of the pole piece 200 in the cutting cavity 111 can be directly observed through the transparent and visible material.

[0056] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A clamping device for fixing the pole piece, characterized in that: include: A box body defines a cutting cavity; A clamping roller set is connected to the box and is used to clamp the pole piece; an adsorption component, at least a part of which is disposed in the cutting chamber and is arranged opposite to the clamping roller group along a first direction, the adsorption component comprising an adsorption surface; and An auxiliary roller connected to the box body and spaced apart from the clamping roller group along the first direction, the auxiliary roller comprising a supporting edge; Wherein, along the second direction, there is a first distance between the axis of the auxiliary roller and the adsorption surface, and there is a second distance between the axis of the auxiliary roller and the abutting edge, and the first distance is smaller than the second distance.

2. The clamping device according to claim 1, characterized in that: It also includes a debris removal device, which includes an air jet component connected to the box body and configured to spray air toward the inside of the cutting chamber to blow away impurities.

3. The clamping device according to claim 2, characterized in that: The jet component is provided with a jet hole on one side facing the box body, and the jet component is provided with an air inlet passage communicating with the jet hole on one side different from the jet hole, and the air inlet passage is used to connect with an external jet device.

4. The clamping device according to claim 2, characterized in that: The impurity removal device comprises at least two jet components, which are arranged opposite to each other along the second direction. When the pole piece is cut in the cutting chamber, the at least two jet components are respectively used to blow away impurities on both sides of the pole piece.

5. The clamping device according to claim 2, characterized in that: It also includes a first suction pipe. The box body has a first end and a second end along the jet direction of the jet component. The jet component is arranged at the first end, and the first suction pipe is arranged at the second end and connected to the cutting chamber.

6. The clamping device according to claim 1, characterized in that: The nip roller set includes a first roller and a second roller. The first roller and the second roller are arranged at intervals along the second direction and have different arrangement heights along the first direction.

7. The clamping device according to claim 1, characterized in that: The adsorption assembly also includes a suction cup and a second suction tube, the adsorption surface is arranged on the suction cup, the suction cup is arranged in the cutting chamber, one end of the second suction tube is connected to the suction cup, and the other end is suitable for connecting to an external negative pressure gas source for extracting gas from the suction cup.

8. The clamping device according to claim 1, characterized in that: The clamping roller group includes a first roller, the first roller has a clamping edge, along the second direction, there is a third distance between the axis of the first roller and the adsorption surface, there is a fourth distance between the axis of the first roller and the clamping edge, and the third distance is smaller than the fourth distance.

9. Laser cutting equipment, characterized in that, include: A laser cutter and a clamping device as described in any one of claims 1 to 8, wherein the box body is provided with a first window communicating with the cutting chamber, and the laser cutter cuts the pole piece through the first window.

10. The laser cutting device according to claim 9, characterized in that: The housing further comprises a second window and a baffle, wherein the second window is arranged opposite to the first window, and the baffle is arranged at the second window to block the laser from being emitted from the second window.

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