A battery cell loading and unloading mechanism

Abstract

The present invention discloses a battery cell loading and unloading mechanism, comprising a mounting seat, a picking arm and a multi-stage cam linkage mechanism, wherein the picking arm is extended in the left and right directions, and the two ends of the picking arm respectively form a first picking part and a second picking part, and the picking arm moves in the up and down directions and can be rotatably installed on the mounting seat along an axis extending in the up and down directions; the multi-stage cam linkage mechanism is used to drive the picking arm to move, wherein the picking arm moves downward and the picking arm rotates at the same time, so that the first picking part and the second picking part are respectively correspondingly located at different material transfer stations, the first picking part is used to pick up the battery cell at the corresponding material transfer station, and the second picking part is used to release the battery cell to the corresponding material transfer station; the picking arm moves upward and then downward, and the picking arm rotates at the same time, so that the first picking part and the second picking part are correspondingly exchanged at different material transfer stations, and correspondingly, the first picking part is used to release the battery cell, and the second picking part is used to pick up the battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cells, and in particular to a battery cell loading and unloading mechanism. Background Art

[0002] Under the condition of certain power generation efficiency of battery cells, the power generation of the module can be improved by welding the battery cells after they are split. The existing battery loading and unloading mechanism usually uses a motor to drive a rotating swing arm or a motion module to switch between loading and unloading stations, and drives the cylinder to directly drive the lifting method to pick up and feed the battery cells. The action rhythm is affected by the cylinder, and the action rhythm frequency is limited. Summary of the invention

[0003] The main purpose of the present invention is to propose a battery cell loading and unloading mechanism, which aims to solve the problem that the action rhythm frequency of the current loading and unloading structure is limited and cannot meet the production needs of higher frequency.

[0004] To achieve the above objectives, the present invention provides a battery cell loading and unloading mechanism, comprising:

[0005] Mounting seat;

[0006] A material picking arm is extended in the left and right directions, and the two ends of the material picking arm respectively form a first material picking part and a second material picking part. The material picking arm moves in the up-down direction and can be rotatably mounted on the mounting seat along an axis extending in the up-down direction; and

[0007] A multi-stage cam linkage mechanism is used to drive the picking arm to move;

[0008] The picking arm moves downward and rotates at the same time, so that the first material part and the second material picking part are respectively located at different material transfer stations, the first material picking part is used to pick up the battery cell at the corresponding material transfer station, and the second material picking part is used to release the battery cell to the corresponding material transfer station;

[0009] The picking arm moves upward and then downward, and at the same time the picking arm rotates, so that the first picking part and the second picking part are correspondingly exchanged at different material transfer stations. Correspondingly, the first picking part is used to release the battery cell, and the second picking part is used to pick up the battery cell.

[0010] Optionally, the multi-stage cam linkage mechanism includes:

[0011] The rotary drive cam structure comprises a mounting shaft rotatably mounted along the vertical axis and a guide sleeve seat rotatably reciprocating along the vertical axis, wherein the guide sleeve seat is sleeved on the upper end of the mounting shaft;

[0012] A lifting drive cam structure, comprising a cam plate arranged at the lower end of the mounting shaft, wherein the upper end surface of the cam plate is formed with a driving convex ring; and

[0013] The linkage structure includes a hanging rod extending upward and downward;

[0014] Wherein, the material picking arm is located between the guide sleeve seat and the cam plate;

[0015] The upper end of the hanging rod is hung on the guide sleeve seat, and the lower end of the hanging rod extends to the bottom of the picking arm and abuts against the upper end surface of the driving convex ring;

[0016] The rotation of the guide sleeve seat drives the picking arm to rotate and reciprocate. At the same time, the picking arm and the cam plate rotate relatively, so that the driving convex ring presses against the lower end of the hanging rod and drives the picking arm to move up and down accordingly.

[0017] Optionally, an annular driving groove is provided on the outer side surface of the upper end of the installation shaft, and the annular driving groove is inclined in the vertical direction;

[0018] The outer surface of the guide sleeve seat is provided with a guide bevel groove corresponding to the annular driving groove, and the guide bevel groove is arranged obliquely from top to bottom;

[0019] The rotary drive cam structure further includes a slider assembly, the slider assembly including a mounting rod movably mounted to the mounting seat in an up-and-down direction, and a first slider and a second slider arranged on the mounting rod and spaced apart, the first slider and the second slider both rotate along an axis in the length direction of the mounting rod, and the first slider and the second slider are slidably mounted in the annular drive groove and the guide inclined groove respectively;

[0020] The installation shaft is rotated to drive the first slider to move up and down, thereby driving the installation rod to move up and down, thereby driving the second slider to move up and down, and further driving the guide sleeve seat to rotate and reciprocate.

[0021] Optionally, the rotary drive cam structure further comprises a mounting sleeve, the mounting sleeve is sleeved on the outer surface of the guide sleeve seat, and the upper end of the mounting sleeve is fixedly mounted on the mounting seat, and the outer surface of the mounting sleeve is penetrated by a long groove extending in the up-down direction;

[0022] The slider assembly also includes:

[0023] a slide rail extending in an up-down direction, the slide rail being fixed on the mounting sleeve and spaced apart from the elongated slot; and,

[0024] A base is slidably mounted on the slide rail in an up-and-down direction;

[0025] Wherein, one end of the mounting rod away from the mounting shaft extends out of the elongated slot and is fixedly connected to the base.

[0026] Optionally, the multi-stage cam linkage mechanism further includes a driving assembly, and the driving assembly includes:

[0027] A driving motor is fixedly mounted on the mounting seat, and the driving motor has an output shaft extending in an up-down direction;

[0028] The transmission structure comprises a driving gear and a driven gear, wherein the driving gear is arranged on the output shaft and rotates synchronously with the output shaft, and the driven gear is arranged on the upper end of the mounting shaft and meshes with the driving gear.

[0029] Optionally, a first spring is sleeved on the outer surface of the hanging rod, and upper and lower ends of the first spring are respectively against the guide sleeve seat and the picking arm.

[0030] Optionally, a support rod is further provided between the material picking arm and the guide sleeve seat, the support rod and the hanging rod are arranged at intervals along the circumferential direction, the lower end of the support rod is fixedly mounted on the material picking arm, and the upper end is hung on the guide sleeve seat.

[0031] Optionally, a second spring is sleeved on the outer surface of the support rod, and upper and lower ends of the second spring are respectively against the guide sleeve seat and the material picking arm.

[0032] Optionally, a rolling body is provided at the lower end of the hanging rod, and the rolling body slides along the driving convex ring.

[0033] Optionally, a mounting hole is provided on the upper end surface of the cam plate, and a first positioning groove is provided on the side wall of the mounting hole;

[0034] The installation shaft is installed in the installation hole, and the installation shaft is provided with a second positioning groove corresponding to the first positioning groove, and a placement space is formed between the first positioning groove and the second positioning groove;

[0035] The multi-stage cam linkage mechanism further comprises a positioning block, and the positioning block is located in the placement space.

[0036] In the technical solution of the present invention, the lifting and rotating movement of the material picking arm is driven by the multi-stage cam linkage mechanism. Specifically, the material picking arm moves downward, and the material picking arm rotates at the same time, so that the first material picking part and the second material picking part are respectively corresponding to different material transfer stations, and the first material picking part is used to pick up the battery cell at the corresponding material transfer station, and the second material picking part is used to release the battery cell to the corresponding material transfer station; at this time, the first material picking part is attached with a battery cell, and the second material picking part is in an empty state, and the material picking arm moves upward and then downward, and the material picking arm rotates at the same time, so that the first material picking part and the second material picking part are correspondingly exchanged at different material transfer stations, and correspondingly, the first material picking part is used to release the battery cell, and the second material picking part is used to pick up the battery cell. The up and down movement of the material picking arm realizes the material picking and placing actions of the battery material money, and the rotation of the material picking arm realizes the conversion of different stations. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0038] Figure 1 A three-dimensional schematic diagram of an embodiment (one angle) of a battery cell loading and unloading mechanism provided by the present invention;

[0039] Figure 2 for Figure 1 A three-dimensional schematic diagram of an embodiment of a battery cell loading and unloading mechanism (from another angle);

[0040] Figure 3 for Figure 1 A three-dimensional structural diagram of a multi-stage cam linkage mechanism;

[0041] Figure 4 for Figure 1 Schematic diagram of the connection between the middle mounting shaft and the cam disc;

[0042] Figure 5 for Figure 1 Schematic diagram of the connection between the middle guide sleeve and the picking arm.

[0043] Description of Figure Numbers:

[0044]

[0045]

[0046] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0050] Under the condition of certain power generation efficiency of battery cells, the power generation of the module can be improved by welding the battery cells after they are split. The existing battery loading and unloading mechanism usually uses a motor to drive a rotating swing arm or a motion module to switch between loading and unloading stations, and drives the cylinder to directly drive the lifting method to pick up and feed the battery cells. The action rhythm is affected by the cylinder, and the action rhythm frequency is limited.

[0051] In view of this, the present invention provides a battery cell loading and unloading mechanism, which uses a driving component to simultaneously drive the loading and unloading station conversion and the battery cell picking and feeding, thereby improving production efficiency. Figures 1 to 5 This is an embodiment of the battery cell loading and unloading mechanism provided by the present invention.

[0052] Please refer to Figures 1 to 3The battery cell loading and unloading mechanism 100 includes a mounting seat 1, a picking arm 2 and a multi-stage cam linkage mechanism 3, wherein the picking arm 2 is extended in the left and right directions, and the two ends of the picking arm 2 form a first picking portion 21 and a second picking portion 22 respectively, and the picking arm 2 moves in the up and down directions and can be rotatably installed on the mounting seat 1 along the axis extending in the up and down directions; the multi-stage cam linkage mechanism 3 is used to drive the picking arm 2 to move, wherein the picking arm 2 moves downward, and at the same time, the picking arm 2 rotates, so that the first picking portion 21 and the second picking part 22 are respectively located at different material transfer stations, the first picking part 21 is used to pick up the battery cells at the corresponding material transfer station, and the second picking part 22 is used to release the battery cells to the corresponding material transfer station; the picking arm 2 moves upward and then downward, and the picking arm 2 rotates at the same time, so that the first picking part 21 and the second picking part 22 are correspondingly exchanged at different material transfer stations, and correspondingly, the first picking part 21 is used to release the battery cells, and the second picking part 22 is used to pick up the battery cells.

[0053] In the technical solution of the present invention, the lifting and rotating movement of the material picking arm 2 is driven by the multi-stage cam linkage mechanism 3. Specifically, the material picking arm 2 moves downward, and the material picking arm 2 rotates at the same time, so that the first material picking part 21 and the second material picking part 22 are respectively corresponding to different material transfer stations, and the first material picking part 21 is used to pick up the battery cell at the corresponding material transfer station, and the second material picking part 22 is used to release the battery cell to the corresponding material transfer station; at this time, the first material picking part 21 is attached with a battery cell, and the second material picking part is in an empty state. The material picking arm 2 moves upward and then downward, and the material picking arm 2 rotates at the same time, so that the first material picking part 21 and the second material picking part 22 are correspondingly exchanged at different material transfer stations, and correspondingly, the first material picking part 21 is used to release the battery cell, and the second material picking part 22 is used to pick up the battery cell. The up and down movement of the material picking arm 2 realizes the material picking and placing actions of the battery material money, and the rotation of the material picking arm 2 realizes the conversion of different stations.

[0054] Furthermore, in order to realize the lifting and rotation of the picking arm 2, in this embodiment, the multi-stage cam linkage mechanism 3 includes a rotation drive cam structure 31, a lifting drive cam structure 32 and a linkage structure, the rotation drive cam structure 31 includes a mounting shaft 311 rotatably mounted along the vertical axis and a guide sleeve seat 312 that rotates and reciprocates along the vertical axis, the guide sleeve seat 312 is sleeved on the upper end of the mounting shaft 311; the lifting drive cam structure 32 includes a cam plate 321 arranged at the lower end of the mounting shaft 311, and the upper end surface of the cam plate 321 is formed with a driving convex ring 3211; the linkage The structure includes a hanging rod 331 extending upward and downward; wherein the picking arm 2 is located between the guide sleeve seat 312 and the cam plate 321; the upper end of the hanging rod 331 is hung on the guide sleeve seat 312, and the lower end of the hanging rod 331 extends to the bottom of the picking arm 2 and abuts against the upper end surface of the driving convex ring 3211; the guide sleeve seat 312 rotates to drive the picking arm 2 to rotate and reciprocate, and at the same time, the picking arm 2 and the cam plate 321 rotate relative to each other, so that the driving convex ring 3211 abuts against the lower end of the hanging rod 331 and drives the picking arm 2 to move up and down accordingly. In this way, by driving the installation shaft 311 to rotate, the guide sleeve seat 312 drives the picking arm 2 to rotate back and forth to switch the work station. At the same time, the cam plate 321 and the hanging rod 331 that rotate synchronously with the installation shaft 311 cooperate to realize the lifting and lowering of the picking arm 2. Through the cooperation of the two sets of cam structures, the switching of work stations and feeding and picking of materials can be carried out synchronously.

[0055] In order to achieve the linkage effect between the installation shaft 311 and the guide sleeve seat 312, in this embodiment, please refer to Figure 3 to Figure 4 The outer side surface of the upper end of the mounting shaft 311 is provided with an annular driving groove 3111, and the annular driving groove 3111 is inclined in the up-down direction; the outer surface of the guide sleeve seat 312 is provided with a guide inclined groove 3121 corresponding to the annular driving groove 3111, and the guide inclined groove 3121 is inclined from top to bottom; the rotation driving cam structure 31 also includes a slider assembly 313, and the slider assembly 313 includes a mounting rod 3131 movably mounted to the mounting seat 1 in the up-down direction, and a first mounting rod 3131 and a first mounting rod 3131 arranged at intervals. The slider 3132 and the second slider, the first slider 3132 and the second slider both rotate along the axis of the length direction of the mounting rod 3131, and the first slider 3132 and the second slider are respectively slidably installed in the annular driving groove 3111 and the guide inclined groove 3121; wherein, the mounting shaft 311 is rotated to drive the first slider 3132 to move up and down, driving the mounting rod 3131 to move up and down, thereby driving the second slider to move up and down, and further driving the guide sleeve seat 312 to rotate and reciprocate.

[0056] Specifically, the reciprocating rotation angle of the guide sleeve seat 312 is determined by the starting angle of the guide bevel groove 3121. In this embodiment, the projection of the guide bevel groove 3121 on the horizontal plane is the length of half the circumference of the cross-sectional circle of the guide sleeve seat 312, so that the guide sleeve seat 312 maintains a reciprocating rotation of 180 degrees.

[0057] Moreover, in order to ensure that the guide sleeve seat 312 and the installation shaft 311 can rotate relative to each other without causing the guide sleeve seat 312 to loosen and fall off, a bearing is provided between the guide sleeve seat 312 and the installation shaft 311 .

[0058] In order to ensure that the mounting rod 3131 moves in the up and down direction, in this embodiment, please refer to Figure 4 The rotary drive cam structure 31 also includes a mounting sleeve 314, which is sleeved on the outer surface of the guide sleeve seat 312, and the upper end of the mounting sleeve 314 is fixedly mounted on the mounting seat 1, and the outer surface of the mounting sleeve 314 is penetrated by an elongated groove 3141 extending in the up-down direction; the slider assembly 313 also includes a slide rail 3133 and a base 3134, the slide rail 3133 extends in the up-down direction, the slide rail 3133 is fixed on the mounting sleeve 314, and is spaced apart from the elongated groove 3141; the base 3134 is slidably mounted on the slide rail 3133 in the up-down direction; wherein, one end of the mounting rod 3131 away from the mounting shaft 311 extends out of the elongated groove 3141 and is fixedly connected to the base 3134. The installation sleeve 314 is provided to limit the circumferential movement of the installation rod 3131, so that when the installation shaft 311 rotates, the installation rod 3131 does not rotate therewith, and keeps the up-and-down movement. The length of the elongated slot 3141 corresponds to the vertical height of the annular driving slot 3111. The first slider 3132 and the second slider are linked to each other, so that the installation shaft 311 is linked to the guide sleeve seat 312.

[0059] Specifically, the first sliding block 3132 and the second sliding block are two bearings sleeved on the mounting rod 3131 , which are low in cost and easy to install, and meet the requirements of sliding and rotating.

[0060] In this embodiment, in order to ensure the stability of the up and down movement of the installation rod 3131, two slide rails 3133 are provided, which are respectively located on both sides of the elongated groove 3141 to provide stable support.

[0061] The present invention does not limit the driving method of the installation shaft 311, which can be driven by a motor belt or a screw. Figure 2The multi-stage cam linkage mechanism 3 also includes a driving component 34, which includes a driving motor 341 and a transmission structure. The driving motor 341 is fixedly mounted on the mounting seat 1, and the driving motor 341 has an output shaft extending in the up-down direction; the transmission structure includes a driving gear 3421 and a driven gear 3422, the driving gear 3421 is arranged on the output shaft and rotates synchronously with the output shaft, and the driven gear 3422 is arranged at the upper end of the mounting shaft 311 and meshes with the driving gear 3421. The motor drive method has a simple structure, and the gear transmission method makes the connection tight. The rotation speed of the mounting shaft 311 is affected by the rotation speed of the driving motor 341. Selecting a motor with a higher rotation speed can increase the cell pick-up and placement speed of the cell loading and unloading mechanism 100, thereby improving work efficiency.

[0062] It should be noted that the transmission structure may also be a reducer, which plays the role of matching the rotation speed and transmitting the torque and is widely used in the mechanical field, so it will not be described in detail here.

[0063] Specifically, according to the linear distance between the driving motor 341 and the mounting shaft 311 , a transmission gear may be added between the driving gear 3421 and the driven gear 3422 to ensure the driving effect.

[0064] In this embodiment, please refer to Figure 5 The outer surface of the hanging rod 331 is sleeved with a first spring 3311, and the upper and lower ends of the first spring 3311 are respectively against the guide sleeve seat 312 and the pick-up arm 2. Under the action of the driving convex ring 3211, the upper end of the hanging rod 331 protrudes upward from the lower end of the guide sleeve seat 312, and the first spring 3311 is compressed. When the guide sleeve seat 312 rotates in the opposite direction, the upper end of the hanging rod 331 falls, and the first spring 3311 is stretched. By providing the first spring 3311, the connection is tighter, and the hanging rod 331 is prevented from shaking when the guide sleeve seat 312 rotates. At the same time, the first spring 3311 also plays a buffering role.

[0065] Specifically, the driving convex ring 3211 is formed with two first ring segments and two second ring segments which are symmetrically arranged along the radial direction, and the two first ring segments and the two second ring segments are staggered. Upward and downward, the height of the first ring segment is lower than that of the second ring segment, and there is an inclined transition between adjacent first ring segments and second ring segments. When the lower end of the hanging rod 331 is located in the first ring segment, the picking arm 2 is in the lowest position. When the lower end of the hanging rod 331 moves to the second ring segment, the picking arm 2 rotates and rises to the highest position at the same time.

[0066] In addition, a support rod 332 is provided between the pick-up arm 2 and the guide sleeve seat 312. The support rod 332 and the hanging rod 331 are arranged at intervals along the circumferential direction. The lower end of the support rod 332 is fixedly mounted on the pick-up arm 2, and the upper end is hung on the guide sleeve seat 312. The support rod 332 plays the role of positioning and guiding up and down, so as to stabilize the guide sleeve seat 312 and the pick-up arm 2.

[0067] It should be noted that the positioning and up and down guiding functions can also be achieved by respectively setting corresponding internal splines and external splines on the installation shaft 311 and the picking arm 2 through spline connection, which will not be described in detail here.

[0068] Furthermore, the outer surface of the support rod 332 is sleeved with a second spring 3321, and the upper and lower ends of the second spring 3321 are respectively against the guide sleeve seat 312 and the pick-up arm 2. When the guide sleeve seat 312 rotates, the support rod 332 is prevented from shaking, and the second spring 3321 also plays a buffering role.

[0069] Furthermore, in order to ensure the driving effect, two hanging rods 331 are symmetrically arranged, and the lower ends of the two hanging rods 331 are located in the first ring segment or the second ring segment. The two hanging rods 331 move synchronously, and two support rods 332 are symmetrically arranged, thereby ensuring circumferential stability.

[0070] In order to ensure smooth cooperation between the lower end of the hanging rod 331 and the driving convex ring 3211, a rolling body 3312 is provided at the lower end of the hanging rod 331, and the rolling body 3312 slides along the driving convex ring 3211. The movement is flexible and not stuck.

[0071] It should be noted that the present invention does not limit the form of the rolling body 3312, and it can be a roller, a bearing, etc., which will not be described in detail here.

[0072] In this embodiment, the cam disc 321 is fixed to the installation shaft 311 by screw threads. Furthermore, in order to facilitate installation and positioning, the upper end surface of the cam disc 321 is provided with an installation hole, the side wall of the installation hole is provided with a first positioning groove, the installation shaft 311 is installed in the installation hole, and the installation shaft 311 is provided with a second positioning groove corresponding to the first positioning groove, and a placement space is formed between the first positioning groove and the second positioning groove; the multi-stage cam linkage mechanism 3 also includes a positioning block, and the positioning block is located in the placement space. Such a setting is convenient for assembly and positioning, and is easy to install.

[0073] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A battery cell loading and unloading mechanism, used for transferring materials between two different transfer stations, characterized in that: The battery cell loading and unloading mechanism comprises: Mounting seat; A material picking arm is extended in the left and right directions, and the two ends of the material picking arm respectively form a first material picking part and a second material picking part. The material picking arm moves in the up-down direction and can be rotatably mounted on the mounting seat along an axis extending in the up-down direction; and A multi-stage cam linkage mechanism is used to drive the picking arm to move; The picking arm moves downward and rotates at the same time, so that the first picking part and the second picking part are respectively located at different material transfer stations, the first picking part is used to pick up the battery cell at the corresponding material transfer station, and the second picking part is used to release the battery cell to the corresponding material transfer station; The picking arm moves upward and then moves downward, and the picking arm rotates at the same time, so that the first picking part and the second picking part are correspondingly exchanged at different material transfer stations. Correspondingly, the first picking part is used to release the battery cell, and the second picking part is used to pick up the battery cell; The multi-stage cam linkage mechanism comprises: The rotary drive cam structure comprises a mounting shaft rotatably mounted along the vertical axis and a guide sleeve seat rotatably reciprocating along the vertical axis, wherein the guide sleeve seat is sleeved on the upper end of the mounting shaft; A lifting drive cam structure, comprising a cam plate arranged at the lower end of the mounting shaft, wherein the upper end surface of the cam plate is formed with a driving convex ring; and The linkage structure includes a hanging rod extending upward and downward; Wherein, the material picking arm is located between the guide sleeve seat and the cam plate; The upper end of the hanging rod is hung on the guide sleeve seat, and the lower end of the hanging rod extends to the bottom of the picking arm and abuts against the upper end surface of the driving convex ring; The rotation of the guide sleeve seat drives the picking arm to rotate and reciprocate. At the same time, the picking arm and the cam plate rotate relatively, so that the driving convex ring presses against the lower end of the hanging rod and drives the picking arm to move up and down accordingly.

2. The battery cell loading and unloading mechanism according to claim 1, characterized in that: An annular driving groove is provided on the outer side surface of the upper end of the installation shaft, and the annular driving groove is inclined in the vertical direction; The outer surface of the guide sleeve seat is provided with a guide bevel groove corresponding to the annular driving groove, and the guide bevel groove is arranged obliquely from top to bottom; The rotary drive cam structure further includes a slider assembly, the slider assembly including a mounting rod movably mounted to the mounting seat in an up-and-down direction, and a first slider and a second slider arranged on the mounting rod and spaced apart, the first slider and the second slider both rotate along an axis in the length direction of the mounting rod, and the first slider and the second slider are slidably mounted in the annular drive groove and the guide inclined groove respectively; The installation shaft is rotated to drive the first slider to move up and down, thereby driving the installation rod to move up and down, thereby driving the second slider to move up and down, and further driving the guide sleeve seat to rotate and reciprocate.

3. The battery cell loading and unloading mechanism according to claim 2, characterized in that: The rotary drive cam structure further comprises a mounting sleeve, the mounting sleeve is sleeved on the outer surface of the guide sleeve seat, and the upper end of the mounting sleeve is fixedly mounted on the mounting seat, and the outer surface of the mounting sleeve is penetrated by a long groove extending in the up-down direction; The slider assembly also includes: a slide rail extending in an up-down direction, the slide rail being fixed on the mounting sleeve and spaced apart from the elongated slot; and, A base is slidably mounted on the slide rail in an up-and-down direction; Wherein, one end of the mounting rod away from the mounting shaft extends out of the elongated slot and is fixedly connected to the base.

4. The battery cell loading and unloading mechanism according to claim 1, characterized in that: The multi-stage cam linkage mechanism further includes a driving assembly, which includes: A driving motor is fixedly mounted on the mounting seat, and the driving motor has an output shaft extending in an up-down direction; The transmission structure comprises a driving gear and a driven gear, wherein the driving gear is arranged on the output shaft and rotates synchronously with the output shaft, and the driven gear is arranged on the upper end of the mounting shaft and meshes with the driving gear.

5. The battery cell loading and unloading mechanism according to claim 1, characterized in that: A first spring is sleeved on the outer surface of the hanging rod, and upper and lower ends of the first spring are respectively against the guide sleeve seat and the material picking arm.

6. The battery cell loading and unloading mechanism according to claim 1, characterized in that: A support rod is also provided between the material picking arm and the guide sleeve seat. The support rod and the hanging rod are arranged at intervals along the circumferential direction. The lower end of the support rod is fixedly installed on the material picking arm, and the upper end is hung on the guide sleeve seat.

7. The battery cell loading and unloading mechanism according to claim 6, characterized in that: A second spring is sleeved on the outer surface of the support rod, and upper and lower ends of the second spring are respectively against the guide sleeve seat and the material picking arm.

8. The battery cell loading and unloading mechanism according to claim 1, characterized in that: A rolling body is provided at the lower end of the hanging rod, and the rolling body slides along the driving convex ring.

9. The battery cell loading and unloading mechanism according to claim 1, characterized in that: The upper end surface of the cam plate is provided with a mounting hole, and the side wall of the mounting hole is provided with a first positioning groove; The installation shaft is installed in the installation hole, and the installation shaft is provided with a second positioning groove corresponding to the first positioning groove, and a placement space is formed between the first positioning groove and the second positioning groove; The multi-stage cam linkage mechanism further comprises a positioning block, and the positioning block is located in the placement space.

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