Button cell positive electrode cake holding device

Abstract

The application discloses a clamping device for positive cake of button cell, which comprises a fixed frame and a clamping component. The fixed frame comprises an upper beam, a side vertical beam and a lower beam. The lower end of the side vertical beam extends beyond the bottom edge of the lower beam to form a fixed clamping end. The clamping component comprises a movable handle, an inclined rod and a vertical short rod. The movable handle is fixedly connected with the inclined rod to form a V-shaped operating rod and is connected with the frame in a plane. The clamping component and the fixed frame are in the same plane. The vertical short rod is connected with the lower end of the inclined rod and extends downward beyond the free end of the lower beam to form a movable clamping end. An adjusting mechanism with adjustable clamping force is arranged between the vertical short rod and the side vertical beam. The side cross-sectional shape of the lower surface of the lower beam is consistent to limit the upper surface of the circumferential side of the closely arranged positive cake combination to be neat. The fixed clamping end and the movable clamping end clamp the two end faces of the closely arranged positive cake combination.

Description

Technical Field

[0001] This invention relates to a clamping device, and more particularly to a button battery positive electrode plate clamping device, which clamps multiple button battery positive electrode plates arranged in sequence from one station to another, facilitating further processing and assembly. Background Technology

[0002] The structure of a button cell includes a casing, a negative electrode, a positive electrode cake, a separator, and a sealing ring. The positive electrode cake includes a cake-shaped positive electrode mixture and a positive electrode current collector. The positive electrode current collector is disposed on the cake-shaped positive electrode mixture, and the positive electrode cake is shaped like a disc.

[0003] In the production process of button cells, there is a step that requires moving the formed positive electrode cake from one station to another. The traditional method uses tweezers to move the positive electrode cake from one station to the next, which is relatively inefficient.

[0004] The patent with authorization announcement number "CN214732075U" discloses a battery cell tray placement device, including a substrate and an empty tray storage section and a full tray storage section placed on the substrate; a tray transfer component on a horizontal moving platform can move the tray in the empty tray storage section to the full tray storage section; and then the battery cell loading component places the battery cells one by one onto the tray in the full tray storage section.

[0005] Patent CN212967968U discloses an automated production line for TWS lithium batteries, including a basic lithium battery production line and adding a clamping assembly suitable for lithium batteries. This clamping assembly is installed on a corresponding frame and is adapted to the operating rhythm of the production line.

[0006] The battery cell feeding or clamping components in the prior art are installed on existing tray-mounting devices or automated production lines to generate corresponding mechanical linkages, thereby achieving material transfer or switching between adjacent processes. That is, the aforementioned battery clamping mechanism is only applicable to existing production equipment, and the overall mechanical structure after linkage is relatively large; furthermore, this clamping mechanism relies on existing production line equipment, cannot be used independently, and has poor adaptability.

[0007] Our company is a professional manufacturer of button batteries. In order to improve production efficiency and address the above-mentioned technical problems, we have specially developed a small, flexible, and adaptable positive electrode cake clamping device for moving the tightly arranged positive electrode cakes as a whole. Summary of the Invention

[0008] Based on the technical problem that existing clamping devices can only be applied to existing production lines and have a large mechanical structure after linkage, making them inflexible and unsuitable for use, this invention provides a clamping device that is smaller in size, easier to operate flexibly, and can always stably clamp tightly arranged positive electrode cakes.

[0009] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a button battery positive electrode cake clamping device, characterized in that: it includes a fixing frame and clamping components;

[0010] The fixed frame includes an upper crossbeam, side vertical beams and a lower crossbeam; the side vertical beams connect and fix the ends of the upper and lower crossbeams in the same direction, forming a frame plane with an open side.

[0011] The lower end of the side vertical beam extends out of the bottom edge of the lower horizontal beam to form a fixed clamping end;

[0012] The clamping component includes a movable grip, an inclined rod, and a vertical short rod. The movable grip and the inclined rod are fixedly connected to form a V-shaped operating rod. The corner of the V-shaped operating rod is pivotally connected within the plane of the frame. The clamping component and the fixed frame are in the same plane.

[0013] A vertical short bar is connected to the lower end of the inclined bar and extends downward beyond the free end of the lower crossbeam to form a movable clamping end;

[0014] An adjustable clamping force mechanism is provided between the vertical short rod and the side vertical beam;

[0015] The lower cross-sectional shape of the lower surface of the lower beam is consistent, so as to define the upper peripheral surface of the closely arranged positive electrode cake assembly in a neat manner.

[0016] The fixed clamping end and the movable clamping end clamp the two end faces of the closely arranged positive electrode cake assembly.

[0017] A further preferred embodiment of the present invention is as follows: the adjustment mechanism includes a first screw, a second screw, and a spring; the first screw passes through a first threaded hole on the side vertical beam, the second screw passes through a second threaded hole on the vertical short rod, and a spring is provided between the inner end of the first screw and the inner end of the second screw, and the spring force between the two can be adjusted by turning the first screw or the second screw;

[0018] The V-shaped operating lever drives the vertical short rod away from or near the free end of the lower crossbeam, causing the spring to stretch or shorten.

[0019] A further preferred embodiment of the present invention is as follows: a positioning rod is provided at the free end of the lower crossbeam, and a waist-shaped hole is provided on the vertical short rod for the positioning rod to pass through. The vertical short rod is away from or close to the free end of the lower crossbeam, and the positioning rod moves within the waist-shaped hole.

[0020] A further preferred embodiment of the present invention is as follows: an upper limit rod is installed on the lower side of the upper crossbeam, and a lower limit nut is connected to the second screw.

[0021] The upper limit rod engages with the upper surface of the movable grip rod, and the lower limit nut engages with the upper surface of the lower crossbeam.

[0022] A further preferred embodiment of the present invention is as follows: two vertically parallel fixed rods are fixedly connected to both sides of the upper crossbeam, and the rotating shaft passes through the corner of the V-shaped operating rod and is axially connected to the two fixed rods.

[0023] A further preferred embodiment of the present invention is as follows: the inner surface of the fixed clamping end is a first plane, and the inner surface of the movable clamping end is a second plane, wherein the first plane and the second plane are parallel to each other.

[0024] A further preferred embodiment of the present invention is as follows: the upper and lower crossbeams are parallel to each other, the fixed ends of the upper and lower crossbeams are fixed to the inner wall of the side vertical beam, and the upper and lower crossbeams are perpendicular to the side vertical beam.

[0025] The free end of the upper crossbeam extends beyond the free end of the lower crossbeam in the horizontal direction;

[0026] The free end of the movable grip and the outer end face of the vertical short bar do not exceed the free end of the upper crossbeam in the horizontal direction.

[0027] A further preferred embodiment of the present invention is as follows: there is a gap between the outer wall of the V-shaped operating lever at the corner and the inner wall of the side vertical beam; the vertical short rod is arranged parallel to the side vertical beam.

[0028] A further preferred embodiment of the present invention is that the lower surface of the lower crossbeam is a plane or a continuous curved surface;

[0029] Alternatively, the lower surface of the lower crossbeam may be recessed upwards to form a conical surface with a triangular cross-section.

[0030] A further preferred embodiment of the present invention is that the lateral depth of the waist-shaped hole is greater than the lateral displacement distance of the positioning rod; and the diameter of the waist-shaped hole is equivalent to the cross-sectional diameter of the positioning rod.

[0031] A further preferred embodiment of the present invention is that the vertical short rods are arranged parallel to the side vertical beams;

[0032] The free end of the movable grip and the outer end face of the vertical short bar do not exceed the free end of the upper crossbeam in the horizontal direction.

[0033] A further preferred embodiment of the present invention is: a limiting ring is arranged at the bottom end of the upper limit rod, and the diameter of the limiting ring is larger than the cross-sectional diameter of the upper limit rod;

[0034] The bottom diameter of the limiting ring is approximately equal to the width of the upper surface of the movable grip.

[0035] Compared with the prior art, the advantages of the present invention are: 1. The clamping component is axially connected in the fixed frame. The lower end of the vertical short rod of the clamping component and the lower end of the side vertical beam of the fixed frame are clamped on both sides of the closely arranged positive electrode cake assembly. When an external force is applied to the movable gripping rod of the clamping component, the vertical short rod can be moved laterally to separate from the side of the positive electrode cake assembly. At this time, the clamping opening is open, so that the positive electrode cake assembly can fall into the preset work position, or be ready to clamp the next set of positive electrode cake assemblies.

[0036] 2. An adjustment mechanism for adjusting the clamping force is installed between the vertical short rod and the side vertical beam. When the external force applied to the movable grip is removed, the clamping force of this adjustment mechanism can reset the vertical short rod to return to the clamping state. Furthermore, under the action of the clamping force of this adjustment mechanism, the vertical short rod and the side vertical beam can more stably and forcefully clamp the positive electrode assembly. In addition, the adjustment mechanism between the vertical short rod and the side vertical beam can adjust its own clamping force according to the length of the positive electrode assembly, thus ensuring a consistently stable clamping of the positive electrode assembly.

[0037] 3. In addition, the lower surface cross-sectional shape of the fixed frame beam is consistent to neatly define the upper circumferential surface of the closely arranged positive electrode cake assembly.

[0038] 4. The fixed frame and clamping components are in the same frame plane, making the overall structure of the clamping device narrower in the lateral cross section, occupying less space, which facilitates operation and use, or makes it easier to install it on the production line. Attached Figure Description

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.

[0040] Figure 1 A schematic diagram of the overall structure of the button cell positive electrode plate clamping device;

[0041] Figure 2 A side view diagram of a button cell positive electrode plate clamping device;

[0042] Figure 3 This is a structural disassembly diagram of the button cell positive electrode plate clamping device.

[0043] Figure 4This is a schematic diagram of the overall structure of the fixed frame in this invention;

[0044] Figure 5 This is a schematic diagram of the overall structure of the clamping component in this invention;

[0045] Figure 6 For the present invention Figure 1 Enlarged view of the local structure at point A;

[0046] Figure 7 For the present invention Figure 3 Enlarged view of the local structure at point B;

[0047] Figure 8 This is a schematic diagram of the V-shaped operating lever in its downward rotation limit position.

[0048] Figure 9 This is a schematic diagram showing the V-shaped operating lever in its upward rotation limit position. Detailed Implementation

[0049] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of the invention.

[0050] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0051] like Figures 1 to 3 The diagram shown is a schematic representation of the overall structure of the button battery positive electrode holder 100 according to the present invention. The button battery positive electrode holder 100 includes a fixing frame 10 and a clamping component 20. The clamping component 20 and the fixing frame 10 are located in the same plane.

[0052] The fixed frame 10 includes an upper crossbeam 11, a side vertical beam 12, and a lower crossbeam 13.

[0053] It should be noted that the side vertical beam 12 connects and fixes the same-direction ends of the upper horizontal beam 11 and the lower horizontal beam 13, forming a frame plane s with an open side. The clamping component 20 falls within this frame plane s, making the side cross-section of the clamping device narrower and occupying less space.

[0054] The clamping component 20 includes a movable gripping rod 21, an inclined rod 22, and a vertical short rod 23. The movable gripping rod 21 and the inclined rod 22 are fixedly connected to form a V-shaped operating rod b. The corner of the V-shaped operating rod b is pivotally connected within the frame plane s. The V-shaped operating rod b can rotate up and down around the pivot point to achieve the effect of clamping or releasing the positive electrode assembly.

[0055] Furthermore, the lower end of the side vertical beam 12 extends beyond the bottom edge of the lower horizontal beam 13 to form a fixed clamping end e1. A vertical short rod 23 is connected to the lower end of the inclined rod 22 and extends downward beyond the free end of the lower horizontal beam 13 to form a movable clamping end e2. The fixed clamping end e1 and the movable clamping end e2 clamp the two end faces 32 of the closely arranged positive electrode assembly 30, providing a stable clamping effect.

[0056] An adjustable clamping force adjustment mechanism 20' is provided between the vertical short rod 23 and the side vertical beam 12; the adjustment mechanism 20' makes the clamping of the tightly arranged positive electrode cake assembly 30 by the fixed clamping end e1 and the movable clamping end e2 more stable and powerful.

[0057] The lower cross-sectional shape of the lower surface f of the lower crossbeam 13 is consistent, so as to restrict the upper circumferential surface 31 of the closely arranged positive electrode cake assembly 30 to be neat.

[0058] The advantages of this invention are: the clamping component 20 is axially connected within the fixed frame 10, and the lower end of the vertical short rod 23 of the clamping component 20 and the lower end of the side vertical beam 12 of the fixed frame 10 are clamped on both sides of the closely arranged positive electrode cake assembly 30. When an external force is applied to the movable gripping rod 21 of the clamping component 20, the vertical short rod 23 is driven to move laterally outward to disengage from the side of the positive electrode cake assembly 30. At this time, the clamping opening is open, allowing the positive electrode cake assembly 30 to fall into the preset working position, and also making it easier for the clamping component 20 to prepare to clamp the next set of positive electrode cake assemblies 30.

[0059] Furthermore, an adjustment mechanism 20' for adjusting the clamping force is installed between the vertical short rod 23 and the side vertical beam 12. When the external force applied to the movable grip 21 is removed, the clamping force of the adjustment mechanism 20' can reset the vertical short rod 23 to return to the clamping state. Under the action of the adjustment mechanism 20', the vertical short rod 23 and the side vertical beam 12 can clamp the positive electrode assembly 30 more stably and forcefully.

[0060] In addition, the adjustment mechanism 20' between the vertical short rod 23 and the side vertical beam 12 can adjust its own clamping force according to the length of the positive electrode assembly 30, so as to achieve the effect of always stably clamping the positive electrode assembly 30.

[0061] Furthermore, the lower surface f-side cross-sectional shape of the lower crossbeam 13 of the fixed frame 10 is consistent to neatly define the peripheral upper surface 31 of the closely arranged positive electrode assembly 30.

[0062] Of course, the fixed frame 10 and the clamping component 20 are in the same frame plane s, which can also make the overall structure of the clamping device have a narrower lateral cross section, smaller volume, and smaller space, making it easier to operate and use flexibly, or easier to install it on the production line.

[0063] Further explanation of the adjusting mechanism 20' is needed, as it includes a first screw 21', a second screw 22', and a spring 23'.

[0064] During installation, the first screw 21' passes through the first threaded hole on the side vertical beam 12, and the second screw 22' passes through the second threaded hole on the vertical short rod 23. A spring 23' is provided between the inner ends of the first screw 21' and the second screw 22', with both ends of the spring 23' connected to the first and second screws respectively. When the first screw 21' or the second screw 22' is turned, the elastic force of the spring 23' between the first and second screws can be adjusted, thereby adjusting the clamping force of the adjusting mechanism 20'.

[0065] During operation, the V-shaped operating lever b drives the vertical short lever 23 away from or towards the free end of the lower crossbeam 13, causing the spring 23' to stretch or shorten. After the external force applied to the V-shaped operating lever b is removed, the vertical short lever 23 will reset under the restoring force of the spring 23', returning to the clamping state.

[0066] Furthermore, it is necessary to provide a detailed explanation of the technical means by which the vertically rotatable V-shaped operating lever b is limited in its upper and lower positions: such as... Figure 8 and Figure 9 As shown, an upper limit rod p1 is installed on the lower side of the upper crossbeam 11, and a lower limit nut p2 is connected to the second screw 22'.

[0067] Among them, the upper limit rod p1 is engaged with the upper surface of the movable grip rod 21, and the lower limit nut p2 is engaged with the upper surface of the lower crossbeam 13.

[0068] Preferably, a limiting ring is arranged at the bottom end of the upper limit rod p1, and the diameter of the limiting ring is larger than the cross-sectional diameter of the upper limit rod p1; the bottom diameter of the limiting ring is equivalent to the width of the upper surface of the movable grip rod 21.

[0069] In actual operation, the V-shaped operating lever b is driven to rotate upward by external force until the lower end of the upper limit lever p1 limits the upper surface of the movable grip lever 21, thus preventing the V-shaped operating lever b from continuing to rotate upward.

[0070] After the external force applied to the V-shaped operating lever b is removed, the vertical short rod 23 is displaced inward and downward under the action of the spring 23', which in turn drives the V-shaped operating lever b to rotate downward. At this time, the lower limit nut p2 is limited to the upper surface of the lower crossbeam 13, thereby restricting the V-shaped operating lever b from continuing to rotate downward.

[0071] Preferably, such as Figure 4 , Figure 6 and Figure 7As shown, the free end of the lower crossbeam 13 is provided with a positioning rod r1, and the vertical short rod 23 is provided with an oblong hole r2 through which the positioning rod r1 passes. The vertical short rod 23 is away from or close to the free end of the lower crossbeam 13, and the positioning rod r1 moves within the oblong hole r2.

[0072] Regarding the movement of the positioning rod r1 within the oblong hole r2, it should be noted that: when the vertical short rod 23 moves away from the free end of the lower crossbeam 13, the positioning rod r1 moves downward within the oblong hole r2. When the vertical short rod 23 approaches the free end of the lower crossbeam 13, the positioning rod r1 moves upward within the oblong hole r2.

[0073] The diameter of the oblong hole r2 is approximately equal to the cross-sectional diameter of the positioning rod r1. The oblong hole r2 only limits the lateral displacement of the positioning rod r1; when the positioning rod r1 moves up and down within the oblong hole r2, the longitudinal length of the oblong hole r2 guides the positioning rod r1 but does not limit its vertical movement. In other words, no force is applied between the positioning rod r1 and the oblong hole r2.

[0074] Furthermore, the lateral depth of the oblong hole r2 is greater than the lateral displacement distance of the positioning rod r1, preventing the positioning rod r1 from dislodging from the oblong hole r2. Regardless of whether the vertical short rod 23 moves away from or near the free end of the lower crossbeam 13, the positioning rod r1 always moves within the oblong hole r2 and will not dislodge from it. This technical objective is achieved by setting the lengths of the positioning rod r1 and the lower crossbeam 13, the displacement difference between the vertical short rod 23 and the vertical short rod 23, and the lateral length of the oblong hole r2.

[0075] The axial connection structure of the V-shaped operating lever b is explained as follows: Two vertically parallel fixed rods 40 are fixedly connected to both sides of the upper crossbeam 11, and the rotating shaft 41 passes through the corner of the V-shaped operating lever b and is axially connected to the two fixed rods 40.

[0076] When an external force is applied to the V-shaped operating lever b, the V-shaped operating lever b rotates around the shaft contact and within the frame plane s. That is, when the clamping device is in the active state, it also moves within the same plane and does not occupy additional space outside the frame plane s.

[0077] It should be further noted that the inner surface of the fixed clamping end e1 is the first plane a1, and the inner surface of the movable clamping end e2 is the second plane a2. The first plane a1 and the second plane a2 are parallel to each other. The first and second planes are in close contact with the two end faces of the positive electrode assembly 30, and the inner surfaces of the fixed and movable clamping ends are planes, which makes the clamping of the positive electrode assembly 30 more stable.

[0078] Preferably, such as Figure 4As shown, the upper crossbeam 11 and the lower crossbeam 13 are parallel to each other, and the fixed ends of the upper crossbeam 11 and the lower crossbeam 13 are fixed to the inner wall of the side vertical beam 12. Furthermore, the upper crossbeam 11 and the lower crossbeam 13 are perpendicular to the side vertical beam 12.

[0079] The free end of the upper crossbeam 11 extends beyond the free end of the lower crossbeam 13 in the horizontal direction; the free end of the movable grip 21 and the outer end face of the vertical short bar 23 do not extend beyond the free end of the upper crossbeam 11 in the horizontal direction.

[0080] There is a gap h between the outer wall b1 at the corner of the V-shaped operating lever b and the inner wall of the side vertical beam 12. This provides rotation space for the V-shaped operating lever b and avoids interference between the outer wall of the V-shaped operating lever b and the inner wall of the side vertical beam 12.

[0081] The lower surface f of the lower crossbeam 13 is a plane or a continuous curved surface; or as follows: Figure 6 and Figure 7 As shown, the lower surface of the lower crossbeam 13 is concave upwards to form a conical surface 131 with a triangular cross-section. The above-mentioned technical means are intended to ensure that the upper surface of the positive electrode assembly is flush, thereby avoiding uneven arrangement of the positive electrode assembly in the longitudinal direction.

[0082] The vertical short rod 23 is arranged parallel to the side vertical beam 12 to better hold the positive electrode cake assembly 30.

[0083] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and should not be considered as limitations on this invention.

[0084] The button battery positive electrode plate clamping device provided by the present invention has been described in detail above. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the present invention and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A button battery positive electrode holder, characterized in that: Includes a fixed frame and clamping components; The fixed frame includes an upper crossbeam, side vertical beams and a lower crossbeam; the side vertical beams connect and fix the ends of the upper and lower crossbeams in the same direction, forming a frame plane with an open side. The lower end of the side vertical beam extends out of the bottom edge of the lower horizontal beam to form a fixed clamping end; The clamping component includes a movable grip, an inclined rod, and a vertical short rod. The movable grip and the inclined rod are fixedly connected to form a V-shaped operating rod. The corner of the V-shaped operating rod is pivotally connected within the plane of the frame. The clamping component and the fixed frame are in the same plane. A vertical short bar is connected to the lower end of the inclined bar and extends downward beyond the free end of the lower crossbeam to form a movable clamping end; An adjustable clamping force mechanism is provided between the vertical short rod and the side vertical beam; The lower cross-sectional shape of the lower surface of the lower beam is consistent, so as to define the upper peripheral surface of the closely arranged positive electrode cake assembly in a neat manner. The fixed clamping end and the movable clamping end clamp the two end faces of the closely arranged positive electrode cake assembly; The free end of the lower crossbeam is provided with a positioning rod, and the vertical short rod is provided with an oblong hole through which the positioning rod passes. The vertical short rod is away from or close to the free end of the lower crossbeam, and the positioning rod moves within the oblong hole. The upper and lower crossbeams are parallel to each other, and the fixed ends of the upper and lower crossbeams are fixed to the inner wall of the side vertical beam. The upper and lower crossbeams are perpendicular to the side vertical beam. The free end of the upper crossbeam extends beyond the free end of the lower crossbeam in the horizontal direction.

2. The button battery positive electrode plate clamping device according to claim 1, characterized in that: The adjusting mechanism includes a first screw, a second screw, and a spring; The first screw passes through the first threaded hole on the side vertical beam, and the second screw passes through the second threaded hole on the vertical short rod. A spring is provided between the inner end of the first screw and the inner end of the second screw. Tightening the first screw or the second screw can adjust the elastic force of the spring between them. The V-shaped operating lever drives the vertical short rod away from or near the free end of the lower crossbeam, causing the spring to stretch or shorten.

3. The button battery positive electrode plate clamping device according to claim 2, characterized in that: An upper limit rod is installed on the lower side of the upper crossbeam, and a lower limit nut is connected to the second screw. The upper limit rod engages with the upper surface of the movable grip rod, and the lower limit nut engages with the upper surface of the lower crossbeam.

4. The button battery positive electrode plate clamping device according to claim 1, characterized in that: The upper crossbeam is fixedly connected to two vertically parallel fixed rods on both sides, and the rotating shaft passes through the corner of the V-shaped operating rod and is connected to the two fixed rods.

5. The button battery positive electrode plate clamping device according to claim 1, characterized in that: The inner surface of the fixed clamping end is a first plane, and the inner surface of the movable clamping end is a second plane. The first plane and the second plane are parallel to each other.

6. The button battery positive electrode plate clamping device according to claim 1, characterized in that: There is a gap between the outer wall of the V-shaped operating lever at the corner and the inner wall of the side vertical beam.

7. The button battery positive electrode plate clamping device according to claim 1, characterized in that: The lower surface of the lower crossbeam is a plane and a continuous curved surface; Alternatively, the lower surface of the lower crossbeam may be recessed upwards to form a conical surface with a triangular cross-section.

8. The button battery positive electrode plate clamping device according to claim 1, characterized in that: The lateral depth of the waist-shaped hole is greater than the lateral displacement distance of the positioning rod; the diameter of the waist-shaped hole is equivalent to the cross-sectional diameter of the positioning rod.

9. The button battery positive electrode plate clamping device according to claim 1, characterized in that: The vertical short rods are arranged parallel to the side vertical beams; The free end of the movable grip and the outer end face of the vertical short bar do not exceed the free end of the upper crossbeam in the horizontal direction.

10. The button battery positive electrode disc clamping device according to claim 3, characterized in that: A limiting ring is arranged at the bottom end of the upper limit rod, and the diameter of the limiting ring is larger than the cross-sectional diameter of the upper limit rod. The bottom diameter of the limiting ring is approximately equal to the width of the upper surface of the movable grip.

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