Battery cell carrying mechanism with variable-pitch rotary connecting rods and multiple clamping jaws

Abstract

The variable-pitch rotary connecting rod multi-clamping-jaw battery cell carrying mechanism comprises a fixed hanging bracket, a first connecting rod clamping jaw assembly and a second connecting rod clamping jaw assembly are fixedly hung below the fixed hanging bracket, and a dislocation driving assembly is arranged between the fixed hanging bracket and the first connecting rod clamping jaw assembly; the dislocation driving assembly drives the first connecting rod clamping jaw assembly to linearly move and to be dislocated from the second connecting rod clamping jaw assembly, the first connecting rod clamping jaw assembly comprises a servo lead screw module, the servo lead screw module is in driving connection with a battery cell hoisting variable-pitch connecting base, and the battery cell hoisting variable-pitch connecting base is formed by connecting a plurality of hoisting connecting base bodies in series through folding type variable-pitch hinges; and a clamping jaw assembly main body is fixedly mounted on the hoisting connecting seat main body. Meanwhile, the rotation and the pitch change of the battery cell are synchronously carried out, the rotation of a product in a small space range is realized through the dislocation of the battery cell clamping jaws, the number of air cylinders is reduced, and the equipment size and the equipment cost are saved.

Description

Technical Field

[0001] The invention relates to the technical field of battery cell transport, and in particular to a battery cell transport mechanism with a variable-pitch rotating connecting rod and multiple clamps. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. In 1912, lithium metal batteries were first proposed and studied by Gilbert N. Lewis. In the 1970s, MS Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream.

[0003] Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996. Their safety, specific capacity, self-discharge rate and performance-price ratio are better than lithium ion batteries. Due to its own high technical requirements, only companies in a few countries are producing this type of lithium metal battery.

[0004] Lithium batteries usually have two appearances: cylindrical and square. The battery uses a spiral winding structure inside, with a very fine and highly permeable polyethylene film isolation material between the positive and negative electrodes. The positive electrode includes a current collector composed of lithium cobalt oxide (or lithium nickel cobalt manganese oxide, lithium manganese oxide, lithium iron phosphate, etc.) and aluminum foil. The negative electrode is composed of a current collector composed of graphitized carbon material and copper foil. The battery is filled with an organic electrolyte solution. In addition, a safety valve and a PTC element (partial cylindrical use) are installed to protect the battery from damage when the battery is in an abnormal state and the output is short-circuited.

[0005] According to statistics, lithium battery cells have achieved remarkable development in the past few years. According to the report of the International Battery Manufacturers Association, the global market size of lithium battery cells is expected to reach about 108 billion US dollars in 2025. This is mainly due to the rapid growth of lithium battery cells in the electric vehicle market and the popularity of rechargeable devices. In addition, according to the report of the market research company, the global electric vehicle market is expected to grow at a compound annual growth rate of up to 22.2% by 2025. This will further promote the growth of demand for lithium battery cells. Due to its high energy density, long life and environmental protection characteristics, lithium battery cells are becoming the preferred technology in the field of energy storage and mobile devices in the future. Therefore, the development momentum of lithium battery cells is expected to continue to increase.

[0006] In the production process of lithium battery cells, in order to meet the process requirements of welding, testing, etc., reference Fig. 9, it is necessary to transfer the batteries in the material frame to the battery cell processing equipment, but the battery spacing in the material frame is small, which makes it inconvenient to grab. At the same time, the battery cells on the battery cell processing equipment need to be at consistent spacing, so the battery cell angle and spacing need to be adjusted. Currently, this method uses a single robotic arm to drive a single or several rotating cylinders, and the efficiency of a single one is low. Multiple cylinders rotate the battery cells horizontally. This method requires a large number of cylinders and a large equipment volume.

[0007] Therefore, we propose a battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide a battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps, so as to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a variable-pitch rotating connecting rod multi-claw battery cell handling mechanism, comprising: a fixed hanger, a first connecting rod clamping assembly and a second connecting rod clamping assembly are fixedly mounted below the fixed hanger, and the first connecting rod clamping assembly and the second connecting rod clamping assembly have the same structure; A dislocation driving assembly is arranged between the fixed hanger and the first connecting rod clamping assembly, and the dislocation driving assembly drives the first connecting rod clamping assembly to move linearly and displace with the second connecting rod clamping assembly; The first connecting rod clamping jaw assembly comprises a servo screw module, the servo screw module drives and connects the battery cell hoisting variable pitch connection seat, the battery cell hoisting variable pitch connection seat is composed of a plurality of hoisting connection seat bodies connected in series through a folding variable pitch hinge, and the clamping jaw assembly body is fixedly mounted on the hoisting connection seat body; The first connecting rod clamping jaw assembly also includes a rotating servo module, which drives the jaw assembly body to rotate.

[0010] Preferably, the dislocation drive assembly comprises a third servo motor, a pulley transmission assembly, a second ball screw and a second I-shaped linear guide, the third servo motor is fixedly mounted on one end of the upper surface of the fixed hanger, the second ball screw is rotatably arranged on the lower surface of the fixed hanger, the third servo motor is connected to the second ball screw through the pulley transmission assembly, and the second I-shaped linear guide is symmetrically mounted on the lower surface of the fixed hanger; Through the above technical solution, the third servo motor can drive the pulley transmission assembly to work, thereby driving the second ball screw to rotate.

[0011] Preferably, the first connecting rod clamp assembly comprises a horizontal lifting plate, a plurality of pairs of sliding connection seats are fixedly installed on the upper surface of the horizontal lifting plate, the sliding connection seats are slidingly connected with the second I-shaped linear guide rail, a ball bushing is fixedly installed on the upper surface of the horizontal lifting plate, and the ball bushing is threadedly rotatably sleeved with the second ball screw; Through the above technical solution, the horizontal lifting plate can be moved linearly along the second I-shaped linear guide rail, meeting the requirements of linear movement of the first connecting rod clamping assembly and misalignment of the second connecting rod clamping assembly.

[0012] Preferably, the servo screw module is mainly composed of a first servo motor driving a first ball screw, the first servo motor is fixedly mounted on one end of the lower surface of the horizontal lifting plate, the first ball screw is rotatably connected to the lower surface of the horizontal lifting plate, and the lower part of the horizontal lifting plate is slidably connected to the battery cell lifting variable pitch connection seat through a first I-shaped linear guide rail; Through the above technical solution, the first servo motor can drive the first ball screw to rotate.

[0013] Preferably, the upper end of the leftmost lifting connection seat body is threadedly connected to the first ball screw, the rightmost lifting connection seat body is fixedly connected to the horizontal lifting plate, and the upper ends of all the lifting connection seat bodies except the rightmost end are slidably connected to the first I-shaped linear guide rail; Through the above technical solution, part of the lifting and connecting seat body can be moved linearly along the first I-shaped linear guide rail to adjust the distance between the part of the lifting and connecting seat body.

[0014] Preferably, the rotary servo module is mainly composed of a second servo motor driving a quadrilateral rod to rotate, the second servo motor is fixedly arranged below the first servo motor, the quadrilateral rod movably penetrates a plurality of hoisting connection seat bodies, and a rotary sliding transmission assembly corresponding to the number of hoisting connection seat bodies is sleeved on the quadrilateral rod; Through the above technical solution, the second servo motor can drive the quadrilateral to rotate.

[0015] Preferably, the rotary sliding transmission assembly comprises a driving bevel gear, a bearing and a radial fixed sleeve, the driving bevel gear is fixedly mounted on the radial fixed sleeve, the radial fixed sleeve is rotatably connected to the hoisting connection seat body through the bearing, and the driving bevel gear and the radial fixed sleeve clamp the inner ring of the bearing; Through the above technical solution, the rotation of the active bevel gear on the lifting connection seat body can be realized.

[0016] Preferably, the quadrangular rod passes through the active bevel gear and the radial fixed sleeve, and the quadrangular rod is radially fixedly connected to the active bevel gear and axially slidably connected; Through the above technical solution, it can be achieved that the active bevel gear can not only rotate with the four-sided rod, but also slide along the four-sided rod.

[0017] Preferably, the main body of the clamping jaw assembly comprises a driven bevel gear, a fixed bearing seat, a cylinder and a clamping jaw, and the fixed bearing seat is fixedly installed with the main body of the lifting connection seat.

[0018] Preferably, the fixed bearing seat passes through the rotating shaft, the upper end of the rotating shaft is fixedly installed with a driven bevel gear, the lower end of the rotating shaft is fixedly connected to a cylinder, the driven bevel gear is meshed with the driving bevel gear, and the cylinder drives and connects the two clamping claws; Through the above technical solution, the active bevel gear can be driven to rotate during the axial movement of the driven bevel gear, thereby driving the cylinder and the clamping claw to rotate, thereby meeting the rotation requirements of the battery cell.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. The cylinder drives the clamp to clamp the battery cell, and the second servo motor of the rotating servo module drives the four-sided rod to rotate. The four-sided rod drives the driven bevel gear to rotate through the active bevel gear, and then drives the cylinder to rotate through the rotating shaft, finally realizing the horizontal synchronous rotation of several battery cells; 2. The first servo motor of the servo screw module is driven to move the first lifting connection seat body along the first I-shaped linear guide rail. The movement of the first lifting connection seat body causes the folding variable pitch hinge to deform, driving the other lifting connection seat bodies thereon to move synchronously, adjusting the distance between several lifting connection seat bodies, and realizing the adjustment of the distance between the battery cells; 3. The second ball screw is driven to rotate through the third servo motor and the pulley transmission assembly through the dislocation drive assembly. The second ball screw drives the horizontal lifting plate to move along the second I-shaped linear guide through the ball bushing, so that the first connecting rod clamping assembly is dislocated relative to the second connecting rod clamping assembly, and finally the battery cells on the two sets of connecting rod clamping assemblies are dislocated, the activity range of the battery cells is increased, and the rotation of the battery cells in a small space is realized, saving the volume of the equipment; 4. The rotation and pitch change of the battery cells are carried out synchronously at the same time, so that the battery cells in the frame can be rotated after being taken out, and the battery cell spacing is kept consistent with that of the subsequent processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 Rear view of Figure 3 This is a disassembled diagram of the coordination between the dislocation driving assembly and the first connecting rod clamping jaw assembly in the present invention; Figure 4 It is a front view of the connecting rod clamping jaw assembly of the present invention; Figure 5 It is a rear view of the connecting rod clamping jaw assembly of the present invention; Figure 6 It is a structural schematic diagram of the main body of the clamping jaw assembly in the present invention; Figure 7 This is a disassembled diagram of the rotary sliding transmission assembly of the present invention; Figure 8It is a schematic diagram of the cooperation between the present invention and the robotic arm; Fig. 9 The present invention is a flow chart of changing the angle of the battery cell between the material frame and the battery cell processing equipment.

[0021] In the figure: 1, fixed hanger; 2, first connecting rod clamping claw assembly; 21, horizontal lifting plate; 211, sliding connection seat; 212, ball bearing bushing; 213, first I-shaped linear guide; 22, battery cell lifting variable pitch connection seat; 221, lifting connection seat body; 222, folding variable pitch hinge; 23, servo screw module; 231, first servo motor; 232, first ball screw; 24, rotary servo module; 241, second servo motor ; 242, four-sided rod; 25, rotary sliding transmission assembly; 251, active bevel gear; 252, bearing; 253, radial fixed sleeve; 3, second connecting rod clamp assembly; 4, offset drive assembly; 41, third servo motor; 42, pulley transmission assembly; 43, second ball screw; 44, second I-shaped linear guide; 5, clamp assembly body; 51, driven bevel gear; 52, fixed bearing seat; 53, cylinder; 54, clamp. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0023] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0024] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the examples of various specific processes and materials provided by the present invention, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0029] See also Figure 1-8 , the present invention provides a technical solution: Embodiment 1: A cell handling mechanism with variable pitch rotating connecting rod and multiple clamps, comprising: a fixed hanger 1, a first connecting rod clamp assembly 2 and a second connecting rod clamp assembly 3 are fixedly mounted below the fixed hanger 1, the first connecting rod clamp assembly 2 and the second connecting rod clamp assembly 3 have the same structure, wherein the second connecting rod clamp assembly 3 is fixedly arranged, and the first connecting rod clamp assembly 2 is slidably arranged; A dislocation driving assembly 4 is arranged between the fixed hanger 1 and the first connecting rod clamping assembly 2 , and the dislocation driving assembly 4 drives the first connecting rod clamping assembly 2 to move linearly and be dislocated with the second connecting rod clamping assembly 3 .

[0030] The dislocation drive assembly 4 comprises a third servo motor 41, a pulley transmission assembly 42, a second ball screw 43 and a second I-shaped linear guide 44. The third servo motor 41 is fixedly mounted on one end of the upper surface of the fixed hanger 1, the second ball screw 43 is rotatably mounted on the lower surface of the fixed hanger 1, the third servo motor 41 is connected to the second ball screw 43 through the pulley transmission assembly 42, and the second I-shaped linear guide 44 is symmetrically mounted on the lower surface of the fixed hanger 1; The first connecting rod clamp assembly 2 comprises a horizontal lifting plate 21, a plurality of pairs of sliding connection seats 211 are fixedly installed on the upper surface of the horizontal lifting plate 21, the sliding connection seats 211 are slidingly connected with the second I-shaped linear guide rail 44, a ball bearing sleeve 212 is fixedly installed on the upper surface of the horizontal lifting plate 21, and the ball bearing sleeve 212 is threadedly rotatably sleeved with the second ball screw 43; The second ball screw 43 is driven to rotate by the third servo motor 41 and the pulley transmission assembly 42, and the second ball screw 43 and the ball sleeve 212 cooperate to realize the sliding connection seat 211 to drive the horizontal lifting plate 21 to move linearly along the second I-shaped linear guide 44, and adjust the position of the horizontal lifting plate 21 to make the first connecting rod clamping assembly 2 and the second connecting rod clamping assembly 3 misaligned.

[0031] The first connecting rod clamp assembly 2 also includes a servo screw module 23, which is mainly composed of a first servo motor 231 driving a first ball screw 232. The first servo motor 231 is fixedly mounted on one end of the lower surface of the horizontal lifting plate 21, and the first ball screw 232 is rotatably connected to the lower surface of the horizontal lifting plate 21. The lower surface of the horizontal lifting plate 21 is fixedly mounted with a first I-shaped linear guide 213. The lower side of the horizontal lifting plate 21 is slidably connected to the battery cell lifting variable pitch connection seat 22 through the first I-shaped linear guide 213. The battery cell lifting variable pitch connection seat 22 is provided with a plurality of equidistantly arranged thereon. The cell lifting variable pitch connection seat 22 is composed of a plurality of lifting connection seat bodies 221 connected in series through a foldable variable pitch hinge 222, wherein the leftmost lifting connection seat body 221 is threadedly connected to the first ball screw 232 through a ball bearing sleeve seat, so that the lifting connection seat body 221 moves on the first ball screw 232 during the rotation of the first ball screw 232; The rightmost hoisting connection seat body 221 is fixedly connected to the horizontal hoisting plate 21, and the upper ends of all other hoisting connection seat bodies 221 are slidably connected to the first I-shaped linear guide rail 213. The leftmost hoisting connection seat body 221 moves, driving the folding variable pitch hinge 222 to deform, fold or stretch, driving all hoisting connection seat bodies 221 except the rightmost to move equidistantly along the first I-shaped linear guide rail 213, adjusting the distance between the hoisting connection seat bodies 221, and realizing the variable pitch of the hoisting connection seat body 221. Since the battery cell needs to be rotated after being taken out of the material frame, the spacing between the battery cells in the material frame is relatively small, and the spacing becomes larger to meet the rotation of the posture, the spacing between the battery cells of the rear-stage equipment is difficult to match the battery cells of the material frame, and the variable pitch can meet the consistency of the spacing; The first servo motor 231 drives the first ball screw 232 to rotate, so that a lifting connection seat body 221 at the end slides linearly along the first I-shaped linear guide 213. At the same time, through the action of the folding variable pitch hinge 222, other lifting connection seat bodies 221 slide linearly along the first I-shaped linear guide 213 synchronously and coordinately, thereby realizing the synchronous adjustment of the spacing of the lifting connection seat bodies 221.

[0032] The first connecting rod clamp assembly 2 further includes a rotating servo module 24, which is mainly composed of a second servo motor 241 driving a quadrangular rod 242 to rotate. The second servo motor 241 is fixedly arranged below the first servo motor 231, and the quadrangular rod 242 movably penetrates a plurality of hoisting connection seat bodies 221. The quadrangular rod 242 is sleeved with a number of rotating sliding transmission assemblies 25 corresponding to the number of hoisting connection seat bodies 221. The rotary sliding transmission assembly 25 comprises a driving bevel gear 251, a bearing 252 and a radial fixed sleeve 253. The driving bevel gear 251 is fixedly mounted on the radial fixed sleeve 253. The radial fixed sleeve 253 has a built-in bearing 252. The radial fixed sleeve 253 is rotatably connected to the hoisting connection seat body 221 through the bearing 252. The driving bevel gear 251 and the radial fixed sleeve 253 clamp the inner ring of the bearing 252, so that the driving bevel gear 251 and the radial fixed sleeve 253 rotate radially and are fixed axially. The quadrangular rod 242 penetrates the active bevel gear 251 and the radial fixed sleeve 253, and the quadrangular rod 242 is radially fixedly connected to the active bevel gear 251, and axially slidably connected to the active bevel gear 251; The active bevel gear 251 is driven to rotate by the rotation of the quadrangular rod 242 . When the lifting connection seat body 221 is adjusted in pitch, the active bevel gear 251 rotates synchronously with the quadrangular rod 242 and can slide on the quadrangular rod 242 .

[0033] Embodiment 2: In order to solve the clamping problem and adapt to different sizes of batteries, the present invention provides the following technical solutions, please refer to Figure 5 and Figure 6Each lifting connection seat body 221 is fixedly installed with a clamping jaw assembly body 5, and the clamping jaw assembly body 5 comprises a driven bevel gear 51, a fixed bearing seat 52, a cylinder 53 and a clamping jaw 54. The fixed bearing seat 52 is fixedly installed with the lifting connection seat body 221, and the fixed bearing seat 52 passes through the rotating shaft in the up and down directions. The driven bevel gear 51 is fixedly installed on the upper end of the rotating shaft, and the cylinder 53 is fixedly connected to the lower end of the rotating shaft. The driven bevel gear 51 is meshed with the active bevel gear 251, and the cylinder 53 drives and connects the two clamping jaws 54; The driving bevel gear 251 is meshed with the driven bevel gear 51. When the driving bevel gear 251 rotates, the driven bevel gear 51 drives the cylinder 53 to rotate through the rotating shaft, so that the battery cell on the clamp 54 rotates horizontally, and the cylinder 53 drives the clamp 54 to grab the battery cell.

[0034] The fixed hanger 1 is assembled with displacement modules such as a robotic arm to achieve large-scale cell transportation.

[0035] Working principle: The cylinder 53 drives the clamp 54 to clamp the battery cell, and the second servo motor 241 of the rotating servo module 24 drives the quadrangular rod 242 to rotate. The quadrangular rod 242 drives the driven bevel gear 51 to rotate through the active bevel gear 251, and then drives the cylinder 53 to rotate through the rotating shaft, and finally realizes the horizontal synchronous rotation of several battery cells; The first servo motor 231 of the servo screw module 23 drives the first lifting connection seat body 221 to move along the first I-shaped linear guide rail 213. The movement of the first lifting connection seat body 221 causes the folding variable pitch hinge 222 to deform, driving the other lifting connection seat bodies 221 thereon to move synchronously, adjusting the distance between the plurality of lifting connection seat bodies 221, and realizing the adjustment of the distance between the battery cells. The second ball screw 43 is driven to rotate by the dislocation drive assembly 4 through the third servo motor 41 and the pulley transmission assembly 42, and the second ball screw 43 drives the horizontal hanging plate 21 to move along the second I-shaped linear guide 44 through the ball bushing 212, so that the first connecting rod clamping assembly 2 is dislocated relative to the second connecting rod clamping assembly 3, and finally the battery cells on the two groups of connecting rod clamping assemblies are dislocated; At the same time, the rotation and pitch change of the battery cells are carried out synchronously, which saves the automation TT time. By staggering the two rows of battery cells, the activity range of the battery cells is increased, and the rotation of the battery cells in a small space is realized, saving the equipment volume.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps, comprising: A fixed hanger (1), characterized in that a first connecting rod clamping assembly (2) and a second connecting rod clamping assembly (3) are fixedly mounted below the fixed hanger (1), and the first connecting rod clamping assembly (2) and the second connecting rod clamping assembly (3) have the same structure; A dislocation driving assembly (4) is provided between the fixed hanger (1) and the first connecting rod clamping jaw assembly (2), and the dislocation driving assembly (4) drives the first connecting rod clamping jaw assembly (2) to move linearly and displace with the second connecting rod clamping jaw assembly (3); The first connecting rod clamping jaw assembly (2) comprises a servo screw module (23), the servo screw module (23) drivingly connected to a battery cell hoisting variable pitch connection seat (22), the battery cell hoisting variable pitch connection seat (22) being composed of a plurality of hoisting connection seat bodies (221) connected in series via a folding variable pitch hinge (222), and a clamping jaw assembly body (5) being fixedly mounted on the hoisting connection seat body (221); The first connecting rod clamping jaw assembly (2) further comprises a rotation servo module (24), and the rotation servo module (24) drives the jaw assembly body (5) to rotate.

2. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 1 is characterized in that: The dislocation drive assembly (4) comprises a third servo motor (41), a pulley transmission assembly (42), a second ball screw (43) and a second I-shaped linear guide (44); the third servo motor (41) is fixedly mounted on one end of the upper surface of the fixed hanger (1); the second ball screw (43) is rotatably mounted on the lower surface of the fixed hanger (1); the third servo motor (41) is connected to the second ball screw (43) via the pulley transmission assembly (42); and the second I-shaped linear guide (44) is symmetrically mounted on the lower surface of the fixed hanger (1).

3. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 1, characterized in that: The first connecting rod clamping assembly (2) comprises a horizontal lifting plate (21), a plurality of pairs of sliding connection seats (211) are fixedly mounted on the upper surface of the horizontal lifting plate (21), the sliding connection seats (211) are slidingly connected to the second I-shaped linear guide rail (44), a ball bearing sleeve (212) is fixedly mounted on the upper surface of the horizontal lifting plate (21), and the ball bearing sleeve (212) is threadedly rotatably sleeved to the second ball screw (43).

4. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 1, characterized in that: The servo screw module (23) is mainly composed of a first servo motor (231) driving a first ball screw (232); the first servo motor (231) is fixedly mounted on one end of the lower surface of the horizontal hanging plate (21); the first ball screw (232) is rotatably connected to the lower surface of the horizontal hanging plate (21); and the lower part of the horizontal hanging plate (21) is slidably connected to the battery cell hanging variable pitch connection seat (22) via a first I-shaped linear guide rail (213).

5. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 1, characterized in that: The upper end of the leftmost lifting connection seat body (221) is threadedly connected to the first ball screw (232), the rightmost lifting connection seat body (221) is fixedly connected to the horizontal lifting plate (21), and the upper ends of all the lifting connection seat bodies (221) except the rightmost are slidably connected to the first I-shaped linear guide rail (213).

6. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 1, characterized in that: The rotary servo module (24) is mainly composed of a second servo motor (241) driving a quadrilateral rod (242) to rotate. The second servo motor (241) is fixedly arranged below the first servo motor (231). The quadrilateral rod (242) movably penetrates a plurality of hoisting connection seat bodies (221). The quadrilateral rod (242) is sleeved with a number of rotary sliding transmission components (25) corresponding to the number of hoisting connection seat bodies (221).

7. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 6, characterized in that: The rotary sliding transmission assembly (25) comprises an active bevel gear (251), a bearing (252) and a radial fixed shaft sleeve (253); the active bevel gear (251) is fixedly mounted on the radial fixed shaft sleeve (253); the radial fixed shaft sleeve (253) is rotatably connected to the hoisting connection seat body (221) via the bearing (252); the active bevel gear (251) and the radial fixed shaft sleeve (253) clamp the inner ring of the bearing (252).

8. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 6, characterized in that: The quadrangular rod (242) passes through the active bevel gear (251) and the radial fixed shaft sleeve (253), and the quadrangular rod (242) is radially fixedly connected to the active bevel gear (251) and axially slidably connected to the active bevel gear (251).

9. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 1, characterized in that: The clamping jaw assembly body (5) comprises a driven bevel gear (51), a fixed bearing seat (52), a cylinder (53) and a clamping jaw (54), and the fixed bearing seat (52) is fixedly mounted on the lifting connection seat body (221).

10. The battery cell handling mechanism with variable pitch rotating connecting rod and multiple clamps according to claim 9, characterized in that: The fixed bearing seat (52) passes through a rotating shaft, the upper end of the rotating shaft is fixedly mounted with a driven bevel gear (51), the lower end of the rotating shaft is fixedly connected to a cylinder (53), the driven bevel gear (51) is meshed with the driving bevel gear (251), and the cylinder (53) drives and connects two clamping claws (54).

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