Flexible stepless compatible clamping mechanism for battery cell

Abstract

The utility model discloses a flexible stepless compatible clamping mechanism for a battery cell, which comprises a rack and a clamping jaw assembly arranged on the rack, and the clamping jaw assembly comprises a floating clamping jaw assembly and a fixed clamping jaw assembly. The floating clamping jaw assembly comprises a floating pitch changing assembly, an elastic clamping jaw and an elastic adjusting assembly. The elastic clamping jaw is composed of a plurality of single clamping plates, so that the contact surface of the elastic clamping plate is divided into a plurality of small contact surfaces, and the small contact surface of each single clamping plate can be more accurately attached to the surface of a skew battery cell for the skew battery cell; the floating variable-pitch assembly enables the clamping jaw assembly to conduct secondary positioning and clamping and enables each single clamping plate to move independently, in the secondary positioning and clamping process of the clamping jaw assembly, the elastic adjusting assembly can adjust the distance between each single clamping plate and a battery cell, and especially when the battery cells are arranged in an inclined mode, the elastic adjusting assembly can adjust the distance between each single clamping plate and the battery cell. The elastic adjusting assembly enables each single clamping plate to be tightly attached to the surface of the corresponding battery cell, so that the obliquely arranged battery cells can be effectively clamped and are prevented from falling off.

Description

Technical Field

[0001] The present invention relates to the field of mechanical grasping devices, and in particular to a flexible, stepless and compatible clamping mechanism for a battery cell. Background Art

[0002] At present, in the field of new energy battery cell loading, battery cells are clamped by a clamping mechanism. However, in the actual production process, due to differences in product specifications and sizes, in order to enable the clamps to adapt to products of different sizes, a spacing adjustment device is usually set in the clamping mechanism to adjust the spacing of the clamps to adapt to different products.

[0003] Existing gripping mechanisms often use different devices to drive different jaws to adjust the spacing. For example, multiple cylinders are often used to control multiple sets of jaws to adjust the spacing between them. This approach, in which different devices drive different jaws, can lead to significant errors between different sets of jaws, requiring manual recalibration and impacting production efficiency. Furthermore, if a cell within a group is skewed, there's a risk of it being unable to be gripped or even falling, posing a significant safety hazard. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a flexible and stepless compatible clamping mechanism for battery cells, which can be compatible with the clamping and transportation of products of different sizes and irregularly placed products, and can perform secondary positioning and clamping of products to avoid the risk of products falling.

[0005] The technical solution of the utility model is:

[0006] A flexible, stepless and compatible clamping mechanism for a battery cell, comprising a frame, a clamping jaw pitch-changing assembly and a clamping jaw assembly connected to the clamping jaw pitch-changing assembly being provided on the frame;

[0007] The clamping jaw assembly includes a pair of clamping jaw back plates arranged opposite to each other, a floating clamping jaw assembly is connected to one of the clamping jaw back plates, and a fixed clamping jaw assembly is connected to the other of the clamping jaw back plates. The floating clamping jaw assembly and the fixed clamping jaw assembly are driven by the clamping jaw pitch changing assembly to move closer to or farther away from each other along the X-axis direction.

[0008] The floating jaw assembly comprises:

[0009] A secondary pitch-changing plate, which is slidably connected to the lower surface of its corresponding clamping jaw back plate along the X-axis direction;

[0010] A floating pitch-changing assembly, the fixed end of which is connected to the corresponding clamping claw back plate, and the driving end of which is connected to the secondary pitch-changing plate, to which an elastic clamping claw is connected; and the elastic clamping claw is connected to an elastic adjustment assembly for pressing it along the X-axis direction;

[0011] The floating variable pitch assembly drives the elastic clamping jaw to move along the X-axis direction, so that the elastic clamping jaw moves closer to or away from the fixed clamping jaw assembly.

[0012] Furthermore, the elastic clamp is composed of a plurality of single clamps arranged along the Y-axis direction, and each of the single clamps is connected to one of the elastic adjustment components.

[0013] Furthermore, the elastic adjustment assembly includes a plurality of springs, a plurality of guide bearings, and a fixing frame;

[0014] The fixing bracket is fixedly connected to the lower surface of the secondary pitch changing plate;

[0015] Each of the guide bearings passes through the fixing frame along the X-axis direction, and the fixing frame can slide along the guide bearing; one end of each guide bearing is connected to the fixing frame, and the other end is connected to the elastic clamping claw;

[0016] Each of the springs is sleeved between each guide bearing and the elastic clamping claw.

[0017] Furthermore, each of the floating pitch-variable components includes:

[0018] A pitch-variable guide plate is provided with a strip notch obliquely along the Y-axis direction, and the strip notch is obliquely directed away from the direction in which the floating jaw assembly and the fixed jaw assembly approach each other; the pitch-variable guide plate is fixedly connected to the secondary pitch-variable plate and is located between its corresponding jaw back plate and the secondary pitch-variable plate;

[0019] The linear module B is arranged along the Y-axis direction, and its fixed end is connected to the corresponding clamping jaw back plate. Its driving end passes through the clamping jaw back plate and is connected to one end of the cam follower. The other end of the cam follower is placed in the strip slot.

[0020] Furthermore, the fixed clamping jaw assembly further comprises: a secondary pitch changing plate, a floating pitch changing assembly and a fixed clamping jaw;

[0021] The secondary pitch-changing plate is connected to the lower surface of the corresponding clamping claw back plate in a sliding manner along the X-axis direction;

[0022] The floating pitch variable component has a fixed end connected to the corresponding clamping jaw back plate, and a driving end connected to the secondary pitch variable plate. The secondary pitch variable plate is connected to a fixed clamping jaw. The fixed clamping jaw is driven by the floating pitch variable component to move along the X-axis direction, so that it approaches or moves away from the floating clamping jaw assembly.

[0023] Furthermore, the clamping jaw pitch changing assembly is a double-helical screw pitch changing module.

[0024] Furthermore, a plurality of proximity sensors are connected to the floating clamping jaw assembly, and each of the proximity sensors is arranged at intervals on a side of each of the elastic adjustment components away from the elastic clamping jaw.

[0025] Furthermore, the floating jaw assembly and the fixed jaw assembly are each provided with a second jaw assembly, and the second jaw on each second jaw assembly is respectively located below the elastic jaw and the fixed jaw, and each second jaw assembly is also provided with a linear module D whose driving direction is set along the X-axis direction.

[0026] The beneficial technical effects of the utility model are:

[0027] The utility model provides a flexible and infinitely compatible clamping mechanism for an electric core, comprising a frame and a clamping jaw assembly arranged on the frame, wherein the clamping jaw assembly comprises a floating clamping jaw assembly and a fixed clamping jaw assembly.

[0028] First, the floating jaw assembly's elastic clamping plates are composed of several individual plates, which divide the contact surface of the elastic clamping plates into multiple, independently movable small contact surfaces. For tilted cells, the small contact surface of each individual plate allows for more precise contact with the tilted cell surface.

[0029] Secondly, a floating variable pitch assembly is provided on the floating jaw assembly and the fixed jaw assembly, and an elastic adjustment assembly is connected to the elastic clamping plate of the floating jaw moving assembly; the floating variable pitch assembly enables the jaw assembly to be positioned and clamped for a second time, and enables each single clamping plate to move independently. During the secondary positioning and clamping process of the jaw assembly, the elastic adjustment assembly can adjust the distance between each single clamping plate and the battery cell. In particular, when there are crookedly arranged battery cells, the elastic adjustment assembly enables each single clamping plate to be tightly attached to the surface of the battery cell corresponding to it, thereby enabling the crookedly arranged battery cells to be effectively clamped to avoid falling problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the clamping mechanism of the utility model clamping a battery cell;

[0031] Figure 2 This is a schematic diagram of the frame and the clamping jaw pitch-changing mechanism of the utility model;

[0032] Figure 3 This is a schematic diagram of the floating jaw assembly of the utility model;

[0033] Figure 4 This is a schematic diagram of the floating jaw assembly after removing the second jaw assembly;

[0034] Figure 5 This is a schematic diagram of the floating jaw assembly after removing the second jaw assembly from another angle;

[0035] Figure 6 yes Figure 5It is the AA plane section view;

[0036] Figure 7 yes Figure 5 Schematic diagram after removing a floating pitch variable component;

[0037] Figure 8 yes Figure 7 Schematic diagram after removing the back plate of the gripper and part of the single gripper;

[0038] Figure 9 It is a schematic diagram of the fixed clamping jaw assembly of the present utility model.

[0039] in:

[0040] 100-rack;

[0041] 200- jaw pitch change assembly, 201- pitch change screw, 202- screw nut, 203- screw drive motor, 204- slide rail A, 206- reducer, 207- coupling;

[0042] 300- floating clamping jaw assembly, 301- secondary pitch change plate, 302- elastic clamping jaw, 3021- single clamping plate, 303- elastic adjustment assembly, 3031- spring, 3032- guide bearing, sleeve 3032a, 3032b guide shaft, 3033- fixed frame, 3033a- top, 3033b- vertical plate, 3034- support plate;

[0043] 400- floating pitch change assembly, 401- gripper back plate, 4021- driving cylinder B, 4022- slide rail C, 403- pitch change guide plate, 4031- strip notch, 404- cam follower, 405- slide rail B, 406- connecting component, 4061- rectangular portion, 4062- U-shaped portion;

[0044] 500-fixed clamping jaw assembly, 501-fixed clamping jaw;

[0045] 600-Proximity sensor, 601-Sensor mounting bracket, 700-Second clamping jaw, 800-Linear module D, 900-Battery cell. DETAILED DESCRIPTION

[0046] In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0047] like Figures 1-9As shown, the present invention provides a flexible, stepless, and compatible gripping mechanism for battery cells. The mechanism includes a frame 100 connected to the end of a manipulator, which serves as a framework for mounting other components. Definition: The relative motion of the floating jaw assembly 300 and the fixed jaw assembly 500 on the gripper assembly is along the X-axis, with the Y-axis being horizontal and perpendicular to the X-axis.

[0048] The frame 100 is provided with a clamping jaw pitch changing assembly 200 and a clamping jaw assembly connected to the clamping jaw pitch changing assembly 200 .

[0049] The clamping jaw pitch-changing assembly 200 is a double-helical screw pitch-changing module, including a pitch-changing screw 201 , two screw nuts 202 , a screw drive motor 203 , and a slide rail A 204 .

[0050] The variable pitch screw 201 is axially disposed on the frame 100 along the X-axis. A screw drive motor 203 has its fixed end connected to the frame 100 and its drive end connected to the variable pitch screw 201. In the present invention, the screw drive motor 203 is a rotary motor. Preferably, to ensure more precise operation of the jaw pitch-changing assembly 200, the drive end of the screw drive motor 203 is connected to a reducer 206, which is then connected to the variable pitch screw 201 via a coupling 207.

[0051] The two screw nuts 202 are respectively threadedly connected to the variable pitch screw 201 to form a double helical screw. The threads at both ends of the double helical screw rotate in opposite directions, thereby driving the two screw nuts 202 to move towards or away from each other at the same speed.

[0052] Two slide rails A204 are provided, and are provided on the frame 100 in a manner that the length extends along the X-axis direction. The two slide rails A are fixedly provided at both ends of the frame 100 along the Y-axis direction. Two sliders are slidably connected to each slide rail A.

[0053] The above-mentioned jaw assembly includes a pair of opposing jaw backplates 401, each of which is a rectangular plate. One pair of jaw backplates 401 is connected to the two sliders on the same side of the two slide rails A, and the other pair of jaw backplates 401 is connected to the two sliders on the other same side of the two slide rails A. One pair of jaw backplates 401 is connected to the floating jaw assembly 300, and the other pair of jaw backplates 401 is connected to the fixed jaw assembly 500. This allows the jaw pitch-changing assembly 200 to move the floating jaw assembly 300 and the fixed jaw assembly 500 toward or away from each other along the X-axis, thereby achieving product gripping and removal. The product of the present invention is a battery cell 900.

[0054] In actual production, there may be irregularly arranged skewed cells or cells of different lengths in a row of battery cells 900 to be clamped. This will result in a slight error in the spacing between the jaws when the clamping jaw assembly clamps the skewed cell, making it difficult to clamp the skewed cell. If the skewed cell falls off due to lack of clamping, other battery cells will also become loose, and there is a risk of them falling off together.

[0055] To avoid the above problems, the floating side assembly 300 of the clamping jaw of the present invention includes a floating pitch changing assembly 400 , a secondary pitch changing plate 301 , an elastic clamping jaw 302 connected to the secondary pitch changing plate 301 , and an elastic adjustment assembly 303 connected to the elastic clamping jaw 302 .

[0056] Each floating pitch-varying assembly 400 includes a linear module B with a driving direction arranged along the Y-axis direction, a pitch-varying guide plate 403, a cam follower 404, a slide rail B405 and a connecting component 406, wherein the linear module B is composed of a driving cylinder B4021 and a slide rail C4022.

[0057] Two slide rails B405 are provided, extending along the X-axis on the lower surface of the corresponding clamping jaw back plate 401, facing the battery cell 900. The two slide rails B405 are fixed to either side of the clamping jaw back plate 401 along the Y-axis. Each slide rail B405 is connected to a slider, which is jointly fixed to the secondary pitch plate 301. A space is left between the secondary pitch plate 301 and the clamping jaw back plate 401.

[0058] The pitch-changing guide plate 403 has a strip-shaped slot 4031 obliquely defined along the Y-axis. The width of this slot 403 matches the diameter of the active surface of the cam bearing follower 404, described below. Both ends of its length are provided with curved portions adapted to the active surface of the cam bearing follower 404. The slot 4031 is obliquely oriented away from the floating jaw assembly 300 and the fixed jaw assembly 500, as they approach. The pitch-changing guide plate 403 is affixed to the secondary pitch-changing plate 301 and positioned between the jaw back plate 401 and the secondary pitch-changing plate 301. A hollow groove is defined on the jaw back plate 401, corresponding to the slot 4031.

[0059] The driving cylinder B4021 has its fixed end connected to the corresponding jaw back plate 401, and its driving end connected to a connecting member 406. Connecting member 406 consists of a rectangular portion 4061 and a U-shaped portion 4062 perpendicularly connected to the surface of the rectangular portion. The bottom surface of the U-shaped portion 4062 has a through hole for engaging the cam bearing follower 404. The open end of the U-shaped portion 4062 is fixedly connected to the bottom surface of the rectangular portion 4061. The U-shaped portion 4062 passes through the hollow groove in the jaw back plate 401. The through hole on its bottom surface engages one end of the cam bearing follower 404, and the other end of the cam bearing follower 404 is engaged in the strip-shaped slot 4031.

[0060] To ensure smoother operation of the drive cylinder B4021, two slide rails C4022 are symmetrically positioned on either side of the hollow groove in the gripper backplate 401. These rails C4022 are positioned along the Y-axis on the upper surface of the gripper backplate 401, on either side of the hollow groove. The rectangular portion 4061 of the connecting member 406, along its X-axis, is connected to the two slide rails C4022 on either side of the hollow groove via sliders.

[0061] Start the driving cylinder B4021, which drives the connecting component 406 to move along the Y-axis direction. At the same time, the cam bearing follower 404 connected to the connecting component 406 also moves along the strip slot 4031 driven by the connecting component 406. As the cam bearing follower 407 gradually deviates from the X-axis direction along the strip slot 4031, the secondary pitch plate 301 moves along the slide rail B405, that is, the X-axis direction, and approaches the fixed clamping jaw assembly 400, thereby achieving the purpose of secondary positioning and clamping of the clamping jaw assembly.

[0062] Preferably, in order to optimize the operating range of the floating pitch variable assembly 400, in the present invention, the floating clamp assembly 300 includes two floating pitch variable assemblies 400, and the two floating pitch variable assemblies 400 are symmetrically arranged on the floating clamp assembly 300 along the Y-axis direction. The components and connection relationship of the other floating pitch variable assembly are the same as above and will not be repeated here.

[0063] The elastic adjustment assembly 303 includes a plurality of springs 3031, a plurality of guide bearings 3032 and a fixing frame 3033, wherein each guide bearing 3032 includes a cylindrical sleeve 3032a and a cylindrical guide shaft 3032b sleeved in the sleeve 3032a, and the length of the sleeve 3032a is smaller than the length of the guide shaft 3032b.

[0064] The fixing frame 3033 is connected to the lower surface of the secondary pitch plate 301. The fixing frame 3033 is a frame plate with a T-shaped half-section in the vertical direction. The top portion 3033a of the T is connected to the secondary pitch plate 301. The vertical plate portion 3033b of the T has a through-hole for mounting the guide bearing 3032. To secure the guide bearing 3032, the fixing frame 3033 is also provided with a pair of rectangular support plates 3034 spaced apart from each other. Each support plate 3034 also has a through-hole for mounting the guide bearing 3032. One of the support plates 3034 is fixed with a vertical plate portion 3033b along the Y-axis, facing the side of the battery cell 900. Each guide bearing 3032 is arranged on the vertical plate portion 3033b along the X-axis direction, wherein one end of the guide shaft 3032b passes through the through hole of the vertical plate portion 3033b and the through hole of the support plate 3034, and is connected to the elastic clamping jaw 302, and a spring 3031 is sleeved on each guide shaft 3032b located between the support plate 3034 and the elastic clamping jaw 302. When the spring 3031 is in a free state, one end of the spring 3031 abuts against the support plate 3034, and the other end abuts against the elastic clamping jaw 302; the other end of each guide shaft 3032b passes through the through hole of the other support plate 3034 and is fixed to the support plate 3034 by a nut. At this time, each sleeve 3032a is located between the two support plates 3034.

[0065] Preferably, the cylindrical diameters of the two ends of each guide shaft 3032b along its length direction are smaller than the cylindrical diameter between the two ends, so that one end can be fixed with a nut and the other end can be easily engaged in the elastic clamping claw 302.

[0066] The elastic clamp 302 is composed of a plurality of single clamping plates 3021 arranged along the Y-axis. In the present invention, each single clamping plate 3021 is a rectangular clamping plate. Preferably, the length of each single clamping plate 3021 along the Y-axis is less than or equal to the size of a single battery cell 900. Each guide shaft 3032b passes through the through-hole of the vertical plate portion 3033b and the through-hole of the support plate 3034, and is clamped into the corresponding single clamping plate 3021. Each spring 3031, which is sleeved on the guide shaft 3032b, has one end abutting against the support plate 3034 near the side of the single clamping plate, while the other end of each spring 3031 abuts against the corresponding single clamping plate 3021.

[0067] Because the elastic clamp 302 is composed of multiple independent single clamping plates 3021, the contact surface of the elastic clamp is divided into multiple small contact surfaces that can move independently. For tilted battery cells, since each single clamping plate 3021 can move independently, each single clamping plate 3021 can adaptively adjust its optimal clamping distance or clamping force based on the position of the tilted battery cell. Furthermore, the small contact surface of each single clamping plate 3021 allows it to more precisely adhere to the tilted battery cell surface.

[0068] When the driving cylinder B4021 is started and the cam bearing follower 404 gradually deviates from the X-axis direction along the strip-shaped slot 4031, the secondary pitch plate 301 drives the fixing frame 3033, the guide bearing 3032, the elastic adjustment component 303 and the elastic clamping jaw 302 to gradually approach the fixed clamping jaw assembly 500 along the X-axis direction. When each single clamping jaw 3021 is squeezed by the battery cell 900 and the fixed clamping jaw assembly 500 between the elastic clamping jaw 302 and the fixed clamping jaw assembly 500, the fixing frame 3033 continues to drive the guide bearing 3032, the elastic adjustment component 303 and each single clamping jaw 3021 to continue to move. During this process, each single clamping jaw 3021 stops moving due to the aforementioned squeezing force, causing the fixing frame 3033 to drive the sleeve 3032a and a support plate 3034 fixed to the fixing frame 3033 to slide along the guide shaft 3032b. When the battery cells are arranged skewed, each single clamping jaw 3021 is subjected to a different degree of squeezing force, causing the corresponding spring 3031 to deform to a different extent, thereby generating a different degree of rebound force. This allows each single clamping jaw 3021 to independently adjust its clamping force on the battery cell 900 according to the position of its corresponding battery cell 900, thereby completing the secondary positioning and clamping of the present invention. After the secondary positioning and clamping of the battery cell 900 is completed, the fixing frame 3033 and support plate 3034 are reset along the guide shaft 3032b driven by the rebound force of the spring 3031.

[0069] Furthermore, to monitor the clamping status of each single clamping jaw 3021 on the battery cell 900, a proximity sensor 600 is spaced apart from the end of the guide bearing 3032 corresponding to each single clamping jaw 3021, away from the single clamping jaw 3021. To facilitate the installation of each proximity sensor 600, a sensor mounting bracket 601 is also provided on the secondary pitch plate 301. Each proximity sensor 600 is fixed to the sensor mounting bracket 601, and each proximity sensor 600 is spaced apart from a corresponding guide bearing 3032.

[0070] Preferably, two guide bearings 3032 are connected to each single splint 3021. Like the above-mentioned guide bearings 3032, each of the two guide bearings 3032 is provided with a spring 3031. In the present invention, the two guide bearings 3032 are arranged in upper and lower positions. In addition, in order to save manufacturing costs, the two guide bearings 3032 only need to be equipped with one proximity sensor 600.

[0071] Both the fixed jaw assembly 500 and the floating jaw assembly 300 include two floating pitch-variable assemblies 400 and a secondary pitch-variable plate 301. The connection between the two is identical and will not be further described here. The fixed jaw assembly 500 differs from the floating jaw assembly 300 in that the lower surface of the secondary pitch-variable plate 301 in the fixed jaw assembly 500 is affixed to a strip along the Y-axis, to which the fixed jaw 501 is affixed. In the present invention, the fixed jaw 501 is a long rectangular plate that is longer than the single plate 3021. The elastic jaw 302 is the same length as the fixed jaw 501.

[0072] The floating jaw assembly 300 and the fixed jaw assembly 500 each further include a second jaw assembly. Each second jaw assembly also includes a linear module D800, driven along the X-axis, and a second jaw 700. Each second jaw 700 is located below the elastic jaw 302 and the fixed jaw 501. Once the jaw assembly has grasped a battery cell 900, each second jaw 700 is driven by its corresponding linear module D800 to the bottom of the battery cell 900, further preventing the battery cell 900 from falling out.

[0073] The operating principle and process of this utility model are as follows:

[0074] S1, adjusting the spacing and clamping of the jaw assembly: starting the jaw pitch changing assembly 200, which adjusts the spacing between the floating jaw assembly 300 and the fixed jaw assembly 500 according to a preset size to meet the needs of clamping and transporting battery cells 900 of different sizes.

[0075] S2, secondary positioning and clamping of the jaw assembly: Based on the positioning and clamping in S1, the floating jaw assembly 300 and the floating pitch-changing assembly 400 on the fixed jaw assembly 500 are activated. The floating jaw assembly 300, driven by its corresponding floating pitch-changing assembly 400, drives the elastic jaw 302 to move further toward the fixed jaw assembly 500; the fixed jaw assembly 500, driven by its corresponding floating pitch-changing assembly 400, drives the fixed jaw 501 to move further toward the elastic jaw 302;

[0076] During this step, as the floating jaw assembly 300 and the fixed jaw assembly 500 move closer together for clamping, especially when there are skewed battery cells 900, each individual clamping plate 3021 in the floating jaw assembly 300, under the action of the elastic adjustment assembly 303, can be precisely adjusted to fit snugly around the corresponding battery cell 900, thereby effectively clamping the irregularly arranged battery cells 900. Furthermore, the rebound force of the spring 3031 further strengthens the clamping force between the floating jaw assembly 300 and the fixed jaw assembly 500.

[0077] After the clamping jaw assembly is positioned for the second time to clamp the battery cell 900, each second clamping jaw 700 is driven by its corresponding linear module D800 to the bottom of the battery cell 900 to further prevent the battery cell 900 from falling off.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A flexible and infinitely compatible clamping mechanism for a battery cell, characterized in that: The invention comprises a frame (100), wherein the frame (100) is provided with a clamping jaw pitch-changing assembly (200) and a clamping jaw assembly connected to the clamping jaw pitch-changing assembly (200); The clamping jaw assembly comprises a pair of clamping jaw back plates (401) arranged opposite to each other, a floating clamping jaw assembly (300) is connected to one of the pair of clamping jaw back plates (401), and a fixed clamping jaw assembly (500) is connected to the other pair of clamping jaw back plates (401), and the floating clamping jaw assembly (300) and the fixed clamping jaw assembly (500) are driven by the clamping jaw pitch changing assembly (200) to move closer to or farther away from each other along the X-axis direction; The floating jaw assembly (300) comprises: A secondary pitch-changing plate (301) is slidably connected to the lower surface of its corresponding clamping jaw back plate (401) along the X-axis direction; A floating pitch-changing component (400) has a fixed end connected to a corresponding clamping claw back plate (401), and a driving end connected to the secondary pitch-changing plate (301). The secondary pitch-changing plate (301) is connected to an elastic clamping claw (302); and the elastic clamping claw (302) is connected to an elastic adjustment component (303) for pressing the clamping claw along the X-axis direction. The floating variable pitch assembly (400) drives the elastic clamping jaw (302) to move along the X-axis direction, so that the elastic clamping jaw (302) approaches or moves away from the fixed clamping jaw assembly (500).

2. The flexible and stepless compatible clamping mechanism for battery cells according to claim 1, characterized in that: The elastic clamping claw (302) is composed of a plurality of single clamping plates (3021) arranged along the Y-axis direction, and each of the single clamping plates (3021) is connected to an elastic adjustment component (303).

3. The flexible and stepless compatible clamping mechanism for battery cells according to claim 1, characterized in that: The elastic adjustment component (303) includes a plurality of springs (3031), a plurality of guide bearings (3032), and a fixing frame (3033); The fixing frame (3033) is fixedly connected to the lower surface of the secondary pitch-changing plate (301); Each of the guide bearings (3032) passes through the fixing frame (3033) along the X-axis direction, and the fixing frame (3033) can slide along the guide bearing (3032); one end of each of the guide bearings (3032) is connected to the fixing frame (3033), and the other end is connected to the elastic clamping claw (302); Each of the springs (3031) is sleeved between each guide bearing (3032) and the elastic clamping claw (302).

4. The flexible and stepless compatible clamping mechanism for battery cells according to claim 1, characterized in that: Each of the floating pitch-variable components (400) comprises: The pitch-changing guide plate (403) is provided with a strip notch (4031) obliquely along the Y-axis direction, and the strip notch (4031) is obliquely directed away from the direction in which the floating jaw assembly (300) and the fixed jaw assembly (500) approach each other; the pitch-changing guide plate (403) is fixed to the secondary pitch-changing plate (301) and is located between its corresponding jaw back plate (401) and the secondary pitch-changing plate (301); The linear module B (402) is arranged along the Y-axis direction, and its fixed end is connected to the corresponding clamping claw back plate (401). Its driving end passes through the clamping claw back plate (401) and is connected to one end of the cam follower (404). The other end of the cam follower (404) is placed in the strip-shaped slot (4021).

5. The flexible and infinitely compatible clamping mechanism for battery cells according to claim 1, characterized in that: The fixed clamping jaw assembly (500) further comprises: a secondary pitch-changing plate (301), a floating pitch-changing assembly (400) and a fixed clamping jaw (501); The secondary pitch-changing plate (301) is slidably connected to the lower surface of its corresponding clamping claw back plate (401) along the X-axis direction; A floating pitch-changing assembly (400) has a fixed end connected to a corresponding clamping jaw back plate (401), and a driving end connected to the secondary pitch-changing plate (301). The secondary pitch-changing plate (301) is connected to a fixed clamping jaw (501). The fixed clamping jaw (501) is driven by the floating pitch-changing assembly (400) to move along the X-axis direction, so as to move closer to or farther away from the floating clamping jaw assembly (300).

6. The flexible and infinitely compatible clamping mechanism for battery cells according to claim 1, characterized in that: The clamping jaw pitch-changing assembly (200) is a double-helical screw pitch-changing module.

7. The flexible and infinitely compatible clamping mechanism for battery cells according to claim 1, characterized in that: The floating clamping jaw assembly (300) is connected to a plurality of proximity sensors (600), and each proximity sensor (600) is arranged at intervals on a side of each elastic adjustment assembly (303) away from the elastic clamping jaw (302).

8. The flexible and infinitely compatible clamping mechanism for battery cells according to claim 5, characterized in that: The floating jaw assembly (300) and the fixed jaw assembly (500) are each further provided with a second jaw assembly, and the second jaw (700) on each second jaw assembly is respectively located below the elastic jaw (302) and the fixed jaw (501), and each second jaw assembly is further provided with a linear module D (800) whose driving direction is arranged along the X-axis direction.

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