Pole piece coating clamp device

Abstract

The utility model provides a pole piece coating clamp device which comprises a base, a fixed clamp frame body arranged on the base and a movable clamp frame body detachably arranged on the fixed clamp frame body, and the fixed clamp frame body and the movable clamp frame body form a space for clamping a pole piece; and a coating thickness indication step is arranged on the inner wall of the movable clamp frame body. The pole piece coating clamp device is used for manually coating a large-size pole piece, so that the problems that the pole piece transferring and mounting operation is tedious, the coating positioning is inaccurate, the coating error is caused by the fact that the pole piece is easy to deform, the coating thickness is inconsistent, the coating uniformity is not easy to maintain and the like are solved, and the pole piece coating clamp device is particularly suitable for the process of manually coating a titanium mesh.

Description

Technical Field

[0001] The utility model belongs to the technical field and relates to a tool for pole piece coating, in particular to a pole piece coating fixture device. Background Art

[0002] The coating process is one of the most important links in the preparation of electrode sheets. Poor coating effects, such as uneven coating or inappropriate coating thickness, often affect the current distribution, impedance, capacity and charge-discharge performance of the electrode sheet. When the coating layer cracks or falls off, it will cause internal short circuits and other problems, which will seriously affect the safety, stability and life of the device using the electrode sheet. Therefore, in the manufacturing process of electrode sheets and electrical devices, ensuring excellent coating effects and coating quality is of great practical significance.

[0003] At present, in the field of coating and manufacturing pole pieces, especially in the laboratory stage, there are situations and needs for manual coating of large-size pole pieces. For example, when manufacturing salt lake electro-deintercalation and lithium extraction pole pieces or lithium extraction plates, usually, the corresponding slurry is coated on a large-size titanium mesh to form a coating layer of a certain thickness, and then after drying, the anode and cathode are obtained and assembled into an electro-deintercalation and lithium extraction membrane stack. However, in the experiment, the following problems exist in the manual coating process of the titanium mesh: the positioning of the titanium mesh is inaccurate, resulting in different coating areas for each pole piece; the titanium mesh is prone to slight deformation during the coating process, resulting in uneven coating; the process of clamping and fixing the titanium mesh is cumbersome, time-consuming and labor-intensive;

[0004] Therefore, it is necessary to provide a new solution that is suitable for manual coating of large-size pole pieces, especially to solve the above-mentioned problems caused by manual coating of large-size titanium mesh to form electric deintercalation and lithium extraction pole pieces, so as to obtain deintercalation and lithium extraction pole pieces with excellent thickness, flatness and uniformity to ensure the lithium extraction effect. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a pole piece coating fixture device, by using the pole piece coating fixture device to manually coat large-size pole pieces, so as to solve the problems of cumbersome pole piece transfer and installation operations, inaccurate coating positioning, coating errors caused by easy deformation of the pole piece, inconsistent coating thickness and difficulty in maintaining coating uniformity, and is particularly suitable for the process of manual coating of titanium mesh.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a pole piece coating fixture device, the pole piece coating fixture device comprising:

[0008] Base;

[0009] A fixed fixture frame is arranged on the base;

[0010] The movable clamp frame is detachably arranged on the fixed clamp frame, and forms a space for clamping the pole piece with the fixed clamp frame; the inner wall of the movable clamp frame is provided with a coating thickness indicating step.

[0011] The pole piece coating fixture device of the utility model supports the stability of other parts through the base, and utilizes the fixed fixture frame and the movable fixture frame to stably clamp the pole piece, thereby improving the accuracy of the coating position and facilitating maintaining the stability of the pole piece, such as the stability of the structure and shape of a large-size titanium mesh. At the same time, a coating thickness indicating step is provided on the inner wall of the movable fixture frame, so that the thickness can be easily maintained consistent when coating a large area, thereby improving the coating uniformity.

[0012] Preferably, the fixing fixture frame is fixed to the base by welding to maintain the overall mechanical support and stability.

[0013] The following are preferred technical solutions of the present invention, but are not intended to be limitations of the technical solutions provided by the present invention. Through the following technical solutions, the technical objectives and beneficial effects of the present invention can be better achieved and realized.

[0014] As a preferred technical solution of the utility model, a coating thickness indicating step is provided on the inner wall of the fixing fixture frame.

[0015] When the pole piece is to be coated on both sides, a coating thickness indicating step may be provided on the inner wall of the fixing fixture frame.

[0016] Preferably, the bottom of the coating thickness indicating step is in contact with the clamped pole piece, and the coating thickness indicating step has a thickness in a direction perpendicular to the pole piece.

[0017] At this time, the thickness of the coating thickness indicating step indicates the coating thickness, and the scraper can determine the coating thickness through the step, and the excess coating slurry exceeding the thickness of the coating thickness indicating step can be removed, so that the surface of the coating layer is flush with the top of the coating thickness indicating step, and the uniformity and consistency of the coating thickness can be ensured. Therefore, it is further preferred that the coating thickness indicating step is arranged continuously around the inner wall of the frame to ensure that the coating thickness of each area is uniform and consistent.

[0018] As a preferred technical solution of the utility model, the pole piece coating fixture device also includes a pole piece auxiliary clamp, which is arranged in a pole piece auxiliary clamp slot provided on the fixed fixture frame, and the pole piece auxiliary clamp is used to pre-clamp the pole piece for transfer and installation.

[0019] As an optimal technical solution of the utility model, the pole piece auxiliary clamp includes a tiger clip, which extends from the pole piece auxiliary clamp slot of the fixed clamp frame and has a protruding portion, and the movable clamp frame is provided with a corresponding pole piece auxiliary clamp slot to accommodate the protruding portion.

[0020] In order to facilitate the removal of large-sized pole pieces, the utility model preferably uses a pole piece auxiliary clamp, and further preferably a tiger clamp, to pre-clamp the pole piece, so as to facilitate the transfer of the large-sized pole piece to the fixed fixture frame or removal from the fixed fixture frame without contacting or contaminating the pole piece surface or coating layer, and is conducive to maintaining the stability of removal.

[0021] After the pole piece is pre-clamped by the pole piece auxiliary clamp and transferred to the fixed fixture frame, the pole piece auxiliary clamp can be placed in the pole piece auxiliary clamp slot opened on the frame to avoid hindering the fitting of the fixed fixture frame and the movable fixture frame. Furthermore, one end of the pole piece auxiliary clamp can be fixed to the fixed fixture frame, or other structures capable of clamping the pole piece can be provided on the fixed fixture frame, so as to pre-fix the pole piece within the range of the fixed fixture frame to prevent the pole piece from slipping or falling out, which would affect the installation of the thickness movable fixture frame.

[0022] As a preferred technical solution of the present utility model, the fixed clamp frame and / or the movable clamp frame are provided with edge reinforcement beams along the side length direction.

[0023] Due to the long-term tightening of the fixed clamp frame and the movable clamp frame, the frame may be deformed, or loosened, resulting in the inability to truly clamp and position the pole piece titanium mesh. It is preferred to install edge reinforcement beams along the length direction of the frame, especially on the long frame surface of the frame, to achieve long-term and stable clamping of the pole piece.

[0024] As a preferred technical solution of the present utility model, the fixed clamp frame and / or the movable clamp frame is provided with an intermediate reinforcing beam perpendicular to the side length direction.

[0025] In order to prevent the middle part of the large-sized pole piece from deforming due to the lack of load-bearing structure, thereby affecting the coating uniformity, it is preferred to install a reinforcing beam in the central part of the frame, especially between the two opposite long sides, to provide support and protection for the pole piece, further compress the pole piece and prevent it from deformation.

[0026] As a preferred technical solution of the utility model, the fixed clamp frame is provided with one of the protrusions or grooves, and the movable clamp frame is provided with the other of the protrusions or grooves, and the protrusions correspond to the grooves, and are used to quickly position and install the movable clamp frame on the fixed clamp frame.

[0027] As a preferred technical solution of the utility model, the protrusion is provided on the fixing clamp frame, and the protrusion extends toward the central part of the fixing clamp frame and is inclined with respect to the plane where the fixing clamp frame is located, and is used for clamping the pole piece.

[0028] A protrusion capable of clamping the pole piece is provided to quickly position and pre-fix the pole piece, so as to maintain the position of the pole piece when the pole piece is set on the fixed fixture frame, especially after the movable fixture frame has not been installed or has been disassembled, and temporarily fix it to fit with the fixed fixture frame to prevent the pole piece from slipping or falling out.

[0029] As a preferred technical solution of the utility model, a limit plate is provided on the edge of the fixed clamp frame for quickly positioning and installing the movable clamp frame on the fixed clamp frame.

[0030] The limiting plate can limit the position of the movable clamp frame, and is also beneficial to provide a certain supporting force for the installed movable clamp frame, and stabilize the clamping effect between the fixed clamp frame and the movable clamp frame.

[0031] As a preferred technical solution of the utility model, the pole piece coating fixture device includes a clamping hand wheel for clamping the fixed fixture frame and the movable fixture frame and applying pressure.

[0032] One end of the clamping hand wheel can be fixed to the fixed fixture frame, and after the electrode and the movable fixture frame are installed on the fixed fixture frame, the clamping hand wheel is adjusted to clamp the movable fixture frame. Compared with using bolts or other methods to clamp the fixed fixture frame and the movable fixture frame, the clamping hand wheel can simplify the installation operation and can be quickly clamped by a single person.

[0033] Compared with the prior art, the beneficial effects of the utility model are:

[0034] The pole piece coating fixture device provided by the utility model is convenient for clamping large-sized pole pieces and has good coating effect and high efficiency. By clamping the pole piece by using a fixed fixture frame and a movable fixture frame on a base, the accuracy of the coating position is improved and it is beneficial to maintain the stability of the pole piece, such as the stability of the structure and shape of a large-sized titanium mesh. At the same time, a coating thickness indicating step is provided on the inner wall of the movable fixture frame, so that the thickness can be easily kept consistent when coating a large area, thereby improving the coating uniformity.

[0035] The utility model pre-clamps the pole piece by arranging a pole piece auxiliary clamp, so that a large-sized pole piece can be easily transferred to or removed from the fixing fixture frame without contacting or contaminating the pole piece surface or coating layer, and is conducive to maintaining the stability of taking.

[0036] The utility model provides matching protrusions and grooves, as well as a limit plate on the frame, so as to facilitate the rapid positioning of the movable clamp frame and installation on the fixed clamp frame; the protrusion on the fixed clamp frame is further provided as an inclined protrusion with a certain bevel angle, so as to quickly position and pre-fix the pole piece, so as to facilitate the maintenance of the position of the pole piece when the pole piece is set on the fixed clamp frame, especially after the movable clamp frame has not been installed or has been disassembled, and temporarily fix it to make it match the fixed clamp frame to prevent the pole piece from slipping or falling out, so as to stabilize the position of the pole piece and improve the accuracy of coating.

[0037] The utility model effectively prevents the deformation and loosening of the fixture frame during long-term use by providing edge reinforcement beams; the utility model provides support and protection for the pole piece by providing an intermediate reinforcement beam, further compressing the pole piece to prevent its deformation;

[0038] The utility model can simplify the installation operation by arranging the clamping hand wheel, and can realize fast clamping by a single person. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The figure is a schematic diagram of assembling the pole piece coating fixture device;

[0040] Figure 2 An exploded schematic diagram of the pole piece coating fixture device;

[0041] Figure 3 A schematic diagram of a base in the pole piece coating fixture device;

[0042] Figure 4 It is a front schematic diagram of a fixed fixture frame in the pole piece coating fixture device;

[0043] Figure 5 for Figure 4 The enlarged image of the dotted circle frame in the middle;

[0044] Figure 6 It is a schematic diagram of the back side of the fixing fixture frame in the pole piece coating fixture device;

[0045] Figure 7 for Figure 6 The enlarged image of the dotted circle frame in the middle;

[0046] Figure 8 It is a front schematic diagram of a movable fixture frame in the pole piece coating fixture device;

[0047] Fig. 9 for Figure 8 The enlarged image of the dotted circle frame in the middle;

[0048] Fig.10 It is a schematic diagram of the back side of the movable fixture frame in the pole piece coating fixture device;

[0049] Fig.11 is a schematic diagram of a titanium mesh to be coated as a pole piece;

[0050] Fig.12 A schematic diagram of a pole piece auxiliary clamp in the pole piece coating fixture device;

[0051] Fig.13 A schematic diagram of a pressing hand wheel in the pole piece coating fixture device;

[0052] Fig.14 for Figure 1 The enlarged view of the middle circular dotted frame without the movable fixture frame;

[0053] Among them, 10-base, 11-fixed clamp frame, 12-movable clamp frame, 13-coating thickness indicator step, 14-pole piece auxiliary clamp, 15-pole piece auxiliary clamp slot, 16-edge reinforcement beam, 17-middle reinforcement beam, 18-protrusion, 19-groove, 20-limiting plate, 21-clamping hand wheel, 22-pole piece. DETAILED DESCRIPTION

[0054] In order to make the technical solution, purpose and advantages of the utility model clearer, the utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For the electrical and communication fields, it can be a wired connection or a wireless connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0058] Example 1

[0059] This embodiment provides a pole piece coating fixture device, such as Figure 1 and 2 As shown, the pole piece coating fixture device comprises:

[0060] Base 10, such as Figure 3 As shown, it is composed of a left supporting leg, a right supporting leg and a crossbeam therebetween;

[0061] Fixing fixture frame 11, such as Figure 4 and 6 As shown, it is a rectangular frame, which is formed by welding around the top, bottom, left and right frames, the top frame and the bottom frame are long sides, the left frame and the right frame are short sides, and the fixing fixture frame 11 has an inner wall inside the frame and an outer wall outside the frame; wherein the bottom frame is welded and fixed on the crossbeam of the base 10; a coating thickness indicating step 13 is provided on the inner wall of the fixing fixture frame 11; the bottom of the coating thickness indicating step 13 is in contact with the clamped electrode 22 (such as Fig.11 As shown), the coating thickness indicating step 13 has a thickness in a direction perpendicular to the pole piece 22;

[0062] The movable fixture frame 12, such as Figure 8 and 10 As shown, it is a rectangular frame, which is formed by welding the top, bottom, left and right frames, and has an inner wall inside the frame and an outer wall outside the frame, and each size corresponds to the fixed clamp frame 11; the movable clamp frame 12 is detachably arranged on the fixed clamp frame 11, and forms a space for clamping the pole piece 22 with the fixed clamp frame 11; a coating thickness indicating step 13 is arranged on the inner wall of the movable clamp frame 12, and the bottom of the second coating thickness indicating step 13 is in contact with the clamped pole piece 22, and the coating thickness indicating step 13 has a thickness in a direction perpendicular to the pole piece 22;

[0063] Press the hand wheel 21, as Fig.13 As shown, there is a support, a connecting rod is arranged on the support, a movable clamping slider is arranged on the connecting rod, and the clamping slider has a slot at one end close to the support to form a clamping tooth; a handwheel knob is arranged on the clamping slider, and the handwheel knob controls the movement of the clamping slider through a spring mechanism arranged inside the connecting rod, and the clamping teeth of the clamping slider are in contact with the frame and clamp the fixed clamp frame 11 and the movable clamp frame 12 together with the upper end of the support and apply pressure; as shown Figure 1 and Figure 6 As shown, there are 11 clamping hand wheels 21 in total, of which 5 are used to clamp the top frames of the fixed clamp frame 11 and the movable clamp frame 12, 2 are used to clamp the bottom frames of the fixed clamp frame 11 and the movable clamp frame 12, 2 are used to clamp the left frames of the fixed clamp frame 11 and the movable clamp frame 12, and 2 are used to clamp the right frames of the fixed clamp frame 11 and the movable clamp frame 12; each of the clamping hand wheels 21 is welded and fixedly connected to the fixed clamp frame 11 through a support.

[0064] Example 2

[0065] This embodiment provides a pole piece coating fixture device. The pole piece coating fixture device of this embodiment is different from that of Embodiment 1 in that:

[0066] The pole piece coating fixture device also includes a pole piece auxiliary clamp 14, such as Fig.12 As shown;

[0067] The top edge of the fixing fixture frame 11 is provided with three first slots with inward openings, such as Figure 2 , 4 As shown in 14 , each first slot serves as a separate pole piece auxiliary clamp slot 15 for accommodating the pole piece auxiliary clamp 14 ;

[0068] The pole piece auxiliary clamp 14 is a tiger card, which is arranged in the pole piece auxiliary clamp slot 15 arranged on the fixed clamp frame 11 and extends toward the movable clamp frame 12 and has a protruding portion protruding from the plane where the fixed clamp frame 11 is located, such as Fig.14 As shown, the movable clamp frame 12 is provided with a second slot corresponding to the first slot as a pole piece auxiliary clamp slot 15, as shown in FIG. Figure 8-10 As shown, to accommodate the protruding portion, Fig.14 In order to more clearly show the assembly of the pole piece auxiliary clamp 14 and the clamping hand wheel 21, the movable clamp frame 12 is not shown.

[0069] Example 3

[0070] This embodiment provides a pole piece coating fixture device. The pole piece coating fixture device of this embodiment is different from that of Embodiment 2 in that:

[0071] like Figure 6 and 7 As shown, the frame surface of the top frame of the fixing fixture frame 11 away from the pole piece 22 is provided with an edge reinforcement beam 16 parallel to the top frame; the frame surface of the bottom frame of the fixing fixture frame 11 away from the pole piece 22 is provided with an edge reinforcement beam 16 parallel to the bottom frame;

[0072] Among the clamping hand wheels 21, the supports of the five clamping hand wheels 21 located on the top frame of the fixing clamp frame 11 are welded and fixedly connected to the edge reinforcement beam 16; the supports of the two clamping hand wheels 21 located on the bottom frame of the fixing clamp frame 11 are welded and fixedly connected to the edge reinforcement beam 16.

[0073] Example 4

[0074] This embodiment provides a pole piece coating fixture device. The pole piece coating fixture device of this embodiment is different from that of Embodiment 3 in that:

[0075] Figure 1 , 2 As shown in FIGS. 4 and 6 , the fixed fixture frame 11 and the movable fixture frame 12 are both provided with two middle reinforcing beams 17 perpendicular to the top frame and the bottom frame.

[0076] Example 5

[0077] This embodiment provides a pole piece coating fixture device. The pole piece coating fixture device of this embodiment is different from that of Embodiment 4 in that:

[0078] like Figure 4 and 5 As shown, the fixing fixture frame 11 is provided with a protrusion 18, which extends toward the center of the fixing fixture frame 11 and is inclined with respect to the plane where the fixing fixture frame 11 is located, and is used to clamp the pole piece 22; there are 7 protrusions 18 in total, of which 3 are provided on the bottom frame of the fixing fixture frame 11, 2 are provided on the left frame, and 2 are provided on the left frame;

[0079] like Fig.10 As shown, the movable fixture frame 12 is provided with a groove 19 corresponding to the protrusion 18 to accommodate the protrusion 18, and the protrusion 18 corresponds to the groove 19, which is used to quickly position and install the movable fixture frame 12 on the fixed fixture frame 11;

[0080] like Figure 1 , 2 As shown in 4-6, a limiting plate 20 is set on the edge of the frame of the fixed clamp frame 11, and there are 5 limiting plates 20 in total, which are respectively located in the middle of the left side frame, the bottom of the left side frame (close to the bottom frame), the left end of the bottom frame (close to the left side frame), the middle of the bottom frame, and the right end of the bottom frame (close to the right side frame). The limiting plate 20 is used to quickly position the movable clamp frame 12 and install it on the fixed clamp frame 11.

[0081] Comparative Example 1

[0082] This comparative example provides a pole piece coating fixture device, in which the coating thickness indicating step 13 is not provided in the fixed fixture frame 11 and the movable fixture frame 12 . Apart from this, other conditions are exactly the same as those in Example 1.

[0083] The electrode coating fixture device provided in Example 1 is used to coat a large-sized titanium mesh to manufacture an electro-deintercalation and lithium extraction electrode 22, which can achieve stable clamping of the titanium mesh, improve the accuracy of the coating position and help maintain the stability of the electrode 22. At the same time, the coating thickness indicator step 13 can make it easy to maintain consistent thickness when coating a large area, thereby improving coating uniformity. By using the clamping hand wheel 21, the installation operation can be simplified, and rapid clamping can be achieved by a single person.

[0084] The use of the electrode coating fixture device provided in Example 2 can further facilitate the pre-clamping of the titanium mesh, and facilitate the complete and rapid transfer of the large-sized titanium mesh to or removal from the fixed fixture frame 11 without contacting or contaminating the surface or coating layer of the electrode 22, and is conducive to maintaining the stability of the handling.

[0085] The use of the electrode coating fixture device provided in Example 3 can further effectively prevent the fixture frame from being deformed and loosened after long-term use.

[0086] The pole piece coating fixture device provided in Example 4 can further provide support and protection for the titanium mesh, and further press the titanium mesh to prevent it from deformation.

[0087] The electrode coating fixture device provided in Example 5 can further quickly position and pre-fix the titanium mesh, so that when the electrode 22 is set on the fixed fixture frame 11, especially when the movable fixture frame 12 has not been installed or has been disassembled, the position of the titanium mesh can be maintained, and it can be temporarily fixed to match the fixed fixture frame 11 to prevent the titanium mesh from slipping or falling out, so as to stabilize the position of the titanium mesh and further improve the accuracy of coating.

[0088] The electrode coating fixture device provided in Comparative Example 1 is used to coat a large-size titanium mesh to manufacture an electro-deintercalation and lithium extraction electrode 22. This can achieve stable clamping of the titanium mesh, improve the accuracy of the coating position, and help maintain the stability of the electrode 22. However, since there is no coating thickness indicator step 13, the consistency and uniformity of the thickness cannot be guaranteed during large-area coating, which affects the performance of the electrode 22.

[0089] The above description is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by technicians in the relevant technical field within the technical scope disclosed in the present invention are within the protection scope and disclosure scope of the present invention.

Claims

1. A pole piece coating fixture device, characterized in that: The pole piece coating fixture device comprises: Base (10); A fixed fixture frame (11) is arranged on the base (10); The movable clamp frame (12) is detachably arranged on the fixed clamp frame (11) and forms a space for clamping the pole piece (22) with the fixed clamp frame (11); a coating thickness indicating step (13) is arranged on the inner wall of the movable clamp frame (12).

2. The electrode coating fixture device according to claim 1, characterized in that: A coating thickness indicating step (13) is provided on the inner wall of the fixing fixture frame (11).

3. The pole piece coating fixture device according to claim 1, characterized in that: The pole piece coating fixture device also includes a pole piece auxiliary clamp (14) which is arranged in a pole piece auxiliary clamp slot (15) provided on the fixing fixture frame (11), and the pole piece auxiliary clamp (14) is used to pre-clamp the pole piece (22) for transfer and installation.

4. The pole piece coating fixture device according to claim 3, characterized in that: The pole piece auxiliary clamp (14) comprises a tiger clip, which extends from a pole piece auxiliary clamp slot (15) of the fixed clamp frame (11) and has a protruding portion, and the movable clamp frame (12) is provided with a corresponding pole piece auxiliary clamp slot (15) to accommodate the protruding portion.

5. The pole piece coating fixture device according to claim 1, characterized in that: The fixed clamp frame (11) and / or the movable clamp frame (12) are provided with edge reinforcement beams (16) along the side length direction.

6. The pole piece coating fixture device according to claim 1, characterized in that: The fixed clamp frame (11) and / or the movable clamp frame (12) is provided with an intermediate reinforcing beam (17) perpendicular to the side length direction.

7. The pole piece coating fixture device according to claim 1, characterized in that: The fixed clamp frame (11) is provided with one of the protrusions (18) and the grooves (19), and the movable clamp frame (12) is provided with the other of the protrusions (18) and the grooves (19), wherein the protrusions (18) correspond to the grooves (19) and are used to quickly position and install the movable clamp frame (12) on the fixed clamp frame (11).

8. The pole piece coating fixture device according to claim 7, characterized in that: The protrusion (18) is provided on the fixing clamp frame (11), and the protrusion (18) extends toward the center of the fixing clamp frame (11) and is inclined with respect to the plane where the fixing clamp frame (11) is located, and is used for clamping the pole piece (22).

9. The pole piece coating fixture device according to claim 1, characterized in that: A limiting plate (20) is provided on the frame edge of the fixed clamp frame (11) for quickly positioning and installing the movable clamp frame (12) on the fixed clamp frame (11).

10. The pole piece coating fixture device according to claim 1, characterized in that: The pole piece coating fixture device comprises a clamping hand wheel (21) for clamping the fixed fixture frame (11) and the movable fixture frame (12) and applying pressure.

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