Workpiece transfer device

Abstract

The utility model discloses a workpiece transfer device which is provided with a mounting plane and comprises a storage part, a workpiece transfer table and a first transmission part. The storage part is arranged on the mounting plane; the workpiece transfer table is arranged on the side, deviating from the mounting plane, of the storage component in the first direction; the end, facing the storage part, of the workpiece transfer table comprises a transfer plane parallel to the mounting plane, first through holes and first grooves are formed in the transfer plane at intervals, and the first grooves extend in the second direction; a plurality of baffles are arranged on the workpiece transfer table in the circumferential direction of the transfer plane; the first transmission part is in driving connection with the workpiece transfer table. According to the scheme disclosed by the invention, the condition of welding deflection caused by position deviation of the workpiece during welding is prevented. When the workpiece is the tab, the condition that the offset of the tab is too large due to inertia, airflow and other factors in the tab transferring process can be avoided, and therefore the conditions that the tab is obliquely welded and a battery is scrapped due to the fact that the position of the tab and the position of a battery core foil material deviate in the welding process are avoided.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to the field of battery technology. More specifically, the present disclosure relates to a workpiece transfer device. BACKGROUND

[0002] The tab is an important component of the soft package lithium ion battery, which plays the role of a metal conductor with an insulating layer to lead the positive and negative electrodes out of the battery. The tab can be composed of two parts of tab adhesive and metal strip, wherein the tab adhesive is the insulating part, which is used to prevent short circuit between the metal strip and the aluminum plastic film, and is bonded by heat sealing with the aluminum plastic film during packaging to prevent liquid leakage and ensure the safety and reliability of the battery. The metal strip of the tab is ultrasonically welded with the metal foil to realize the internal and external connection of the battery, and at the same time, the current is led out through the tab to form a loop. The tab can be welded to the pole piece by tab ultrasonic welding, and the main principle of tab ultrasonic welding is that high-frequency vibration waves are transmitted to the surface of the metal strip to be welded, so that the surface of the metal strip and the corresponding foil are rubbed against each other to form a fusion between the molecular layers, thereby realizing a firm connection.

[0003] Before welding the tab, the tab to be welded can be placed in a tab receiving device, which is composed of four guide columns arranged in a rectangular shape, and the four guide columns are respectively located at the four corners of the rectangle. The tab is transported to a tab shaping platform for shaping after being sucked by a vacuum suction nozzle and located in the tab receiving device, and then is transferred to a welding seat after shaping to complete ultrasonic welding. During the transfer process, the tab will be obviously skewed due to inertia, and when the skew amount of the tab exceeds the maximum shaping limit of the shaping platform, the tab shaping will fail, thereby causing the tab clamp to transfer the skewed tab to the welding seat. During welding, the position of the tab will be skewed, which will cause the relative position of the tab and the cell foil to be offset, thereby causing the tab to be skewed, which may eventually cause the battery to be scrapped.

[0004] Therefore, there is an urgent need to provide a workpiece transfer device to eliminate the situation that the workpiece is skewed during welding due to position offset, and further, when the workpiece is a tab, the situation that the tab is skewed during welding due to position offset of the tab and the cell foil can be avoided. INVENTION CONTENTS

[0005] In order to at least solve one or more of the above-mentioned technical problems, the present disclosure proposes a device for workpiece transfer in various aspects.

[0006] In a first aspect, the present disclosure provides a workpiece transfer device having a mounting plane and comprising a receiving component, a workpiece transfer table, and a first transmission component; wherein the receiving component is disposed on the mounting plane and configured to receive the workpiece; the workpiece transfer table is disposed on a side of the receiving component facing away from the mounting plane in a first direction; an end of the workpiece transfer table facing the receiving component comprises a transfer plane parallel to the mounting plane, the transfer plane is provided with a first through hole and a first groove at intervals, and the first groove extends in a second direction; the workpiece transfer table is provided with a plurality of baffles circumferentially on the transfer plane, the plurality of baffles protrude from the transfer plane, and the protruding direction is parallel to the first direction and faces the mounting plane; the first transmission component is drivingly connected to the workpiece transfer table to move the workpiece transfer table in the first direction and / or parallel to the mounting plane; the first direction is perpendicular to the mounting plane, and the second direction is parallel to the mounting plane to approach or move away from the receiving component.

[0007] In some embodiments, the receiving component has a receiving cavity and a taking and placing opening, and comprises a receiving flat plate and at least one guide column; the receiving flat plate is disposed parallel to the mounting plane; one end of the guide column is connected to the receiving flat plate, a plurality of the guide columns are connected to the receiving flat plate to form the receiving cavity, and the other end of the guide column extends away from the receiving flat plate in the first direction to form the taking and placing opening.

[0008] In some embodiments, the guide column comprises a first guide plate and a second guide plate with width extension directions perpendicular to each other, one of the two has a width extension direction perpendicular to the second direction, and the other has a width extension direction perpendicular to a third direction; the first guide plate and the second guide plate are both connected to the receiving flat plate to form the receiving cavity for limiting the workpiece; and the third direction is parallel to the mounting plane and perpendicular to the first direction and the second direction.

[0009] In some embodiments, the first through hole is disposed at a central position of the transfer plane, and the first groove is disposed on a side of the first through hole in the third direction and penetrates through the transfer plane in the second direction.

[0010] In some embodiments, the workpiece transfer device comprises a base and a cross beam oppositely disposed in the first direction; the base comprises the mounting plane; the cross beam is disposed on the base and extends in the third direction; the workpiece transfer table is movably connected to the cross beam; and the first transmission component is capable of driving the workpiece transfer table to move along the cross beam.

[0011] In some embodiments, the baffle plate comprises a first baffle plate and a third baffle plate symmetrically arranged along the third direction, for limiting the workpiece in the third direction; and / or a second baffle plate and a fourth baffle plate symmetrically arranged along the second direction, for limiting the workpiece in the second direction, and the second baffle plate and the fourth baffle plate are arranged on one side of the first groove in the third direction.

[0012] In some embodiments, the workpiece transfer device further comprises a clamping component arranged on one side of the receiving component in the second direction, the clamping component comprising a second transmission part and a clamping plate part; the second transmission part is arranged on the mounting plane, for driving the clamping plate part to clamp the workpiece, and the clamping plate part can move along the second direction; the clamping plate part is drivingly connected with the second transmission part, the clamping plate part comprises a clamping opening which is opened and closed along the first direction, and the clamping opening extends along the second direction.

[0013] In some embodiments, the clamping plate part comprises a first clamping plate and a second clamping plate which are arranged in parallel along the first direction, and the clamping opening is formed between the first clamping plate and the second clamping plate;

[0014] The first clamping plate is matched with the first groove, along the third direction, the width of the first clamping plate is smaller than the width of the first groove, along the first direction, the thickness of the first clamping plate is smaller than the depth of the first groove, the first clamping plate and the second clamping plate can move along the second direction, and the first clamping plate is at least partially inserted into the first groove, so that the workpiece is located in the clamping opening, thereby realizing the clamping of the workpiece by the clamping plate part.

[0015] In some embodiments, the workpiece transfer device further comprises a welding component arranged on one side of the receiving component in the second direction, away from the clamping component, comprising a welding seat and a welding head which are oppositely arranged along the first direction, for welding the workpiece.

[0016] In some embodiments, the device further comprises a welding seat cleaning component arranged on one side of the welding component in the second direction, away from the clamping component 40, comprising a cleaning brush which moves along the second direction; the cleaning brush is used for cleaning the welding component.

[0017] By means of the workpiece transfer device provided as above, the scheme of the present disclosure can prevent the workpiece from being misaligned during welding due to position deviation in the process of transferring the workpiece. Specifically, when the workpiece is a tab, the excessive deviation of the tab during the process of transferring the tab due to factors such as inertia and air flow can be avoided, so as to avoid the misalignment of the tab during welding due to the position deviation of the tab and the cell foil, and the scrapping of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example, and wherein like or corresponding elements refer to like or corresponding parts throughout the several figures, in which:

[0019] Figure 1 A schematic view showing an exemplary partial structure of a workpiece transfer device of some embodiments of the present disclosure;

[0020] Figure 2a A front view showing a workpiece transfer table of some embodiments of the present disclosure;

[0021] Figure 2b An oblique view showing a workpiece transfer table of some embodiments of the present disclosure; and

[0022] Figure 3 An exemplary structure schematic view showing a workpiece transfer device of some embodiments of the present disclosure.

[0023] Label name

[0024] 10 receiving member, 11 receiving flat plate, 12 guide column;

[0025] 20 workpiece transfer table, 21 first through hole, 22 first groove, 23 baffle, 231 first baffle, 232 second baffle, 233 third baffle, 234 fourth baffle;

[0026] 30 first transmission member, 31 first fixed part, 32 first moving column;

[0027] 40 clamping member, 41 second transmission part, 43 clamping plate part, 431 first clamping plate, 432 second clamping plate;

[0028] 51 welding seat, 52 welding machine main body, 53 welding machine transmission rod, 54 welding head; and

[0029] 60 welding seat cleaning member, 61 third fixed part, 62 third transmission part, 63 cleaning brush. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0031] It should be understood that the terms "comprise" and "include" used in the specification and claims of the present disclosure indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0032] It should also be understood that the terms used in the present disclosure specification are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used in the present disclosure specification and claims, the singular forms "a", "an" and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should be further understood that the term "and / or" used in the present disclosure specification and claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0033] As used in the specification and claims, the term "if" can be interpreted as "when" or "upon" or "in response to a determination" or "in response to detecting" depending on the context. Similarly, the phrase "if determined" or "if detected [the described condition or event]" can be interpreted as meaning "upon determining" or "in response to determining" or "upon detecting [the described condition or event]" or "in response to detecting [the described condition or event]" depending on the context.

[0034] The specific embodiments of the present disclosure will be described in detail below in combination with the drawings.

[0035] Figure 1 A schematic view of an exemplary partial structure of a workpiece transfer device of some embodiments of the present disclosure is shown. It should be understood that the first direction, the second direction, and the third direction mentioned below are the directions shown in the figure, and the first direction, the second direction, and the third direction can be the direction of the arrow in the figure and the direction opposite to the arrow, wherein the two ends of the first direction can be divided into an upper side and a lower side, the two ends of the second direction can be divided into a front side and a rear side, and the two ends of the third direction can be divided into a left side and a right side.

[0036] As Figure 1As shown, the aforementioned workpiece transfer device can include a base and a top seat arranged opposite in a first direction, and a connecting column connected with the aforementioned base and top seat. The aforementioned workpiece transfer device can have a mounting plane, and include a receiving component 10, a workpiece transfer table 20, and a first transmission component 30. The aforementioned receiving component 10 is arranged on the aforementioned mounting plane, and is used for receiving the aforementioned workpiece. The aforementioned workpiece transfer table 20 is arranged on a side of the aforementioned receiving component 10 away from the base in a first direction (e.g. upward in the figure). An end of the aforementioned workpiece transfer table 20 facing the receiving component 10 includes a transfer plane parallel to the mounting plane, and the transfer plane is provided with a first through hole 21 and a first groove 22 arranged at intervals. The first groove 22 extends in a second direction. The aforementioned workpiece transfer table 20 is provided with a plurality of baffles 23 circumferentially arranged on the transfer plane. The plurality of baffles 23 protrude from the transfer plane, and the protruding direction is parallel to the first direction and faces the mounting plane. The first transmission component 30 is drivingly connected with the workpiece transfer table 20, so as to drive the workpiece transfer table 20 to move in the first direction, and / or parallel to the mounting plane, so as to move close to or away from the receiving component 10. The first direction is perpendicular to the mounting plane, and the second direction is parallel to the mounting plane. Figure 1 In some embodiments, the other end of the aforementioned workpiece transfer table 20 away from the receiving component 10 is drivingly connected with an output end of the aforementioned first transmission component 30. The aforementioned first transmission component 30 is arranged on the top seat and is in sliding connection with the aforementioned top seat.

[0037] In some embodiments, the aforementioned workpiece can be a tab. The tab can be an important component of a soft-pack lithium ion battery, and can serve as a metal conductor with an insulation layer to lead the positive and negative electrodes out of the battery. The tab can be composed of a tab adhesive and a metal strip. The tab adhesive can be an insulation part, and can prevent short circuit between the metal strip and the aluminum plastic film. The tab adhesive can be heat-sealed and bonded with the aluminum plastic film during packaging, so as to prevent liquid leakage and ensure the safety and reliability of the battery. The tab metal strip and the metal foil can be ultrasonically welded, so as to realize the internal and external connection of the battery, and the current can be led out through the aforementioned tab, so as to form a loop.

[0038] In some embodiments, the aforementioned receiving component 10 can be a container without a cover plate on a side facing the workpiece transfer table 20 in the first direction. The aforementioned workpiece can be arranged in the aforementioned receiving component 10. The bottom surface shape of the aforementioned receiving component 10 can be arranged according to the shape of the aforementioned workpiece. For example, when the shape of the aforementioned workpiece is rectangular, the bottom shape of the aforementioned receiving component 10 can also be rectangular.

[0039] In some embodiments, the aforementioned receiving component 10 can be a container without a cover plate on a side facing the workpiece transfer table 20 in the first direction. The aforementioned workpiece can be arranged in the aforementioned receiving component 10. The bottom surface shape of the aforementioned receiving component 10 can be arranged according to the shape of the aforementioned workpiece. For example, when the shape of the aforementioned workpiece is rectangular, the bottom shape of the aforementioned receiving component 10 can also be rectangular.

[0040] In some embodiments, the aforementioned workpiece transfer table 20 is arranged between the aforementioned storage component 10 and the first transmission component 30, and can be moved along the first direction and / or parallel to the mounting plane under the drive of the first transmission component 30. Specifically, the aforementioned workpiece transfer table 20 can be moved towards the storage component 10 along the first direction, and can be extended into the interior of the aforementioned storage component 10, can adsorb the tab near the tab in the storage component 10, and finally can suck the aforementioned tab out of the storage component 10, thereby completing the suction of the tab and the pole piece.

[0041] In some embodiments, the side of the aforementioned workpiece transfer table 20 towards the storage component 10 can be a transfer plane, which can be parallel to the mounting plane, and the transfer plane can be arranged with a plurality of first through holes 21 at intervals, which can be connected with electromagnetic adsorption devices, electrostatic adsorption devices or vacuum adsorption devices, etc., so as to provide adsorption force to the tab through the aforementioned first through holes 21. In some embodiments, the transfer plane of the aforementioned workpiece transfer table 20 towards the storage component 10 can be formed with a plurality of first through holes 21 arranged in an array, which can increase the adsorption force of the aforementioned tab, increase the force area of the tab, and make the force on the surface of the tab uniform, thereby avoiding the bending of the tab.

[0042] In some embodiments, a first groove 22 parallel to the aforementioned second direction can be formed beside the aforementioned first through hole 21, which can extend along the second direction. After the aforementioned first through hole 21 adsorbs the aforementioned tab onto the transfer plane of the aforementioned workpiece transfer table 20, a clamping cavity can be formed between the aforementioned tab and the aforementioned first groove 22, a clamp or other components with clamping function can be extended into the aforementioned clamping cavity, which can facilitate the clamping of the adsorbed aforementioned tab.

[0043] In some embodiments, the side of the aforementioned workpiece transfer table 20 is provided with a baffle 23, which can protrude from the transfer plane and protrude towards the mounting plane along the first direction. The aforementioned baffle 23 can be one or more. When the aforementioned baffle 23 includes a plurality of baffles 23 perpendicular to the second direction, the distance between the aforementioned baffles 23 can be set as the size value of the tab in the second direction. When the aforementioned baffle 23 includes a plurality of baffles 23 perpendicular to the third direction, the distance between the aforementioned baffles 23 can be set as the size value of the tab in the third direction.

[0044] In some embodiments, the top seat can be a rod parallel to a third direction, the first direction can be perpendicular to the mounting plane, the second direction can be parallel to the mounting plane, and the third direction can be perpendicular to the first direction and the second direction. The side of the first transmission component 30 facing away from the mounting plane can be in sliding connection with the top seat and can move along the rod in the third direction. The side of the first transmission component 30 facing the mounting plane can be connected to the upper part of the workpiece transfer table 20 and can drive the workpiece transfer table 20 to move in the first direction.

[0045] By providing the baffle 23 on the workpiece transfer table 20, the excessive deviation of the tab during the transfer process due to inertia, air flow, and other factors can be prevented, and the tab skewing during the transfer can be avoided. Further, during the subsequent welding of the tab, the tab skewing and battery scrapping caused by the position deviation of the tab and the cell foil can be avoided.

[0046] In some embodiments, the receiving component 10 has a receiving cavity and a taking and placing opening and can include a receiving flat plate 11 and one or more guide columns 12. The receiving flat plate 11 can be arranged parallel to the mounting plane. One end of the guide column 12 is connected to the receiving flat plate 11, and a plurality of guide columns 12 and the receiving flat plate 11 form the receiving cavity. The other end of the guide column 12 extends away from the receiving flat plate 11 along the first direction and forms the taking and placing opening.

[0047] In some embodiments, the guide column 12 can be connected to the receiving flat plate 11. The guide column can include a first guide plate perpendicular to the second direction in the width extension direction and a second guide plate perpendicular to the third direction. The receiving flat plate 11, the first guide plate, and the second guide plate can form a right-angle slot.

[0048] In other embodiments, one end of the guide column 12 can be connected to the receiving flat plate 11, and the guide column 12 and the receiving flat plate can form a receiving cavity for receiving a workpiece (e.g., a tab). The other end of the guide column 12 extends along the first direction and forms the taking and placing opening. The workpiece transfer table 20 can extend into the receiving cavity along the first direction from the taking and placing opening to achieve the adsorption of the tab.

[0049] It can be understood that the end of the guide column 12 on one side can be detachably connected to the receiving flat plate 11 or fixedly connected to the receiving flat plate 11, for example, the two can be welded together. This can prevent the guide column 12 from tilting after a long period of use, thereby reducing the skewing of the tab in the receiving component 10.

[0050] In some embodiments, the first guide plate and the second guide plate can be rectangular plates, and the first guide plate can be perpendicular to the second guide plate. Further, the receiving plate 11, the first guide plate, and the second guide plate can form a right-angled slot, and the rectangular tab can slide in the right-angled slot. Specifically, one side of the rectangular tab can slide in the first direction along the first guide plate, and the other side of the rectangular tab can slide in the first direction along the second guide plate.

[0051] In some embodiments, the guide post 12 can be provided as one or more. When the guide post 12 is one, two adjacent sides of the tab can be placed against the first guide plate and the second guide plate of the guide post 12, and the bottom of the tab can be placed on the upper surface of the receiving plate 11. In some embodiments, the guide post 12 can be provided as two, and the two guide posts 12 can be provided at opposite corners of the rectangle, and the two guide posts 12 can form two opposite right-angled slots, respectively. Preferably, the guide post 12 can be provided as four. Specifically, the tab can be positioned in the second direction and the third direction, and the tab can be prevented from being skewed during the transfer process.

[0052] In some embodiments, the guide post 12 can include a first guide post, a second guide post, a third guide post, and a fourth guide post. The first guide post, the second guide post, the third guide post, and the fourth guide post can be arranged in a rectangle to position the workpiece.

[0053] It can be understood that the four guide posts can be provided at four right-angled corners of the rectangle, and the four guide posts can be oppositely arranged to prevent the tab from being offset when placed in the receiving member 10. In some embodiments, the first guide post, the second guide post, the third guide post, and the fourth guide post can be respectively provided with a right-angled slot for positioning the tab. When the tab is placed in the receiving member 10, four corners of the tab can be respectively matched with the right-angled slots.

[0054] In some embodiments, the first guide column, the second guide column, the third guide column and the fourth guide column can be fixed on the base by welding or the like. The first guide column, the second guide column, the third guide column and the fourth guide column can form a rectangular frame, so as to accurately position the tab in a two-dimensional plane, so as to cooperate with the workpiece transfer table 20, so as to realize accurate positioning and transfer of the tab, and ensure the welding quality of the tab. At the same time, four guide columns are arranged, and other parts are arranged in a hollow structure, which can prevent the tab from being mechanically damaged by collision, extrusion and the like, and also facilitate observation of the number of tabs in the storage component 10.

[0055] Figure 2a Fig. 20 shows a front view of a workpiece transfer table according to some embodiments of the present disclosure, Figure 2b Fig. 21 shows an oblique view of a workpiece transfer table according to some embodiments of the present disclosure. As shown in Figure 2a and 2b The workpiece transfer table 20 can include a first through hole 21, a first recess 22 and a baffle 23.

[0056] In some embodiments, the first through hole 21 is arranged at the center of the transfer plane, and the first recess 22 is arranged on one side of the first through hole 21 in the third direction and penetrates the transfer plane along the second direction. The first recess 22 is formed beside the first through hole 21 and is parallel to the second direction, and further, the first recess 22 can penetrate the transfer plane along the second direction.

[0057] In some embodiments, the workpiece transfer device includes a base and a crossbeam arranged opposite to each other along the first direction, i.e. the crossbeam is arranged on the base, the base includes the mounting plane, the crossbeam is arranged on the base and extends along the third direction, the workpiece transfer table 20 is movably connected to the crossbeam, and the first transmission component 30 can drive the workpiece transfer table 20 to move along the crossbeam.

[0058] In some embodiments, the mounting plane of the base can be perpendicular to the first direction. The workpiece transfer table 20 can be movably connected to the crossbeam (for example, by a sliding rail-sliding block connection), so that the workpiece transfer table 20 can move along the crossbeam in the third direction.

[0059] In some embodiments, the workpiece transfer table 20 can be arranged opposite to the storage component 10, for example, when the workpiece transfer table 20 needs to suck the tab in the storage component 10, the center position of the workpiece transfer table 20 in the second direction and the third direction can coincide with the center position of the storage component 10.

[0060] In some embodiments, the inside of the first through hole 21 can be provided with an air suction pipe, which can be used to suck the tab. In some embodiments, electromagnetic suction devices, electrostatic suction devices, vacuum suction devices, etc. can also be used. Preferably, a vacuum suction device can be selected. The vacuum suction cup of the aforementioned vacuum suction device can be fixedly installed on the workpiece transfer table 20, and one end thereof can be connected with a vacuum generator or a negative pressure device through a pipe. The other end of the vacuum suction cup can be provided with a suction head made of elastic materials such as rubber or silicone, which is arranged in the first through hole 21 and can be flush with the transfer plane of the workpiece transfer table 20. The suction head can also be arranged in the first through hole 21 and the suction head end thereof does not exceed the transfer plane of the workpiece transfer table 20. When the first transmission member 30 drives the workpiece transfer table 20 to move to a position close to the tab in the first direction, the suction head of the vacuum suction cup can use the pressure difference between the external atmospheric pressure and the vacuum environment to suck the tab thereon.

[0061] In some embodiments, when the first through hole 21 is arranged at the central position of the workpiece transfer table 20 in a direction parallel to the transfer plane, the central position of the first through hole 21 can coincide with the central position of the tab located in the receiving member 10, so that the suction force of the first through hole 21 can be located at the central position of the tab during the process of sucking the tab, and the force acting on the tab can be uniform, thereby avoiding the tab from being deviated.

[0062] In some embodiments, a first groove 22 parallel to the second direction can be formed beside the first through hole 21. The relative positional relationship between the first through hole 21 and the first groove 22 can satisfy the following formula:

[0063] D>r;

[0064] Wherein, D can be the shortest distance from the center of the first through hole 21 to the first groove 22; and r can be the radius of the first through hole 21. Through the foregoing arrangement, the space conflict can be avoided in the process of clamping the tab by the clamping plate 43 and sucking the tab by the workpiece transfer table 20.

[0065] In some embodiments, the side of the workpiece transfer table 20 can be provided with a baffle 23 protruding towards the base along the first direction. Specifically, the baffle can be an L-shaped baffle, which can be composed of two mutually perpendicular plates and the overall shape can be similar to the letter “L”. The two plates of the L-shaped baffle can limit the translation of the tab on the lower surface of the workpiece transfer table 20. The baffle 23 can also adopt a U-shaped structure, and the U-shaped baffle can have three positioning surfaces, and the distribution of the three positioning surfaces is similar to the letter “U”. The side length of the three positioning surfaces of the U-shaped baffle can be equal, or can be adjusted according to the specific shape and positioning requirements of the tab.

[0066] Through the foregoing arrangement of the baffle 23, the tab can be limited, so as to avoid the tab from deviating during the transfer process.

[0067] In some embodiments, the foregoing baffle 23 can include a first baffle 231 and a third baffle 233 symmetrically arranged along the third direction, for limiting the workpiece in the third direction; and / or a second baffle 232 and a fourth baffle 234 symmetrically arranged along the second direction, for limiting the workpiece in the second direction, and the second baffle 232 and the fourth baffle 234 are arranged on one side of the first groove 22 in the third direction.

[0068] It can be understood that when the through hole 21 adsorbs the tab on the workpiece transfer table 20, the first baffle 231, the second baffle 232, the third baffle 233 and the fourth baffle 234 can surround and position the tab on four sides respectively. Specifically, the first baffle 231, the second baffle 232, the third baffle 233 and the fourth baffle 234 can limit the movement of the tab in the second direction and the third direction in the plane of the workpiece transfer table 20 respectively. In the third direction, the first baffle 231 and the third baffle 233 can limit the position of the tab from both sides of the third direction, so that the tab cannot move randomly in the third direction; similarly, in the second direction, the second baffle 232 and the fourth baffle 234 can limit from both sides of the second direction. This layout can accurately position the tab in the two-dimensional plane composed of the second direction and the third direction, and can improve the positioning accuracy, which is very important for the subsequent precise docking of the tab with the clamp plate 43 and the precise positioning of the welded parts.

[0069] It can be understood that the first baffle 231, the second baffle 232, the third baffle 233 and the fourth baffle 234 can surround and position the four edges of the tab from four directions, which can provide more stable support and positioning effect for the tab. Compared with the positioning mode of less than four baffles, using four baffles can better resist the influence of external factors (such as slight vibration during the transfer process, air flow interference, etc.) on the position of the tab. When the transfer equipment vibrates during operation, the four baffles can fix the tab from the second direction and the third direction to prevent it from moving, so as to ensure that the tab is always in the correct position during the transfer process, thereby achieving accurate positioning of the tab.

[0070] By setting the baffle 23 on the aforementioned workpiece transfer table 20, the excessive deviation of the tab due to inertia, air flow and other factors during the transfer process can be prevented, and the tab shaping failure can be avoided, thereby avoiding the situation that the tab is deviated during welding, the tab is deviated, and the battery is scrapped. At the same time, the aforementioned embodiment of the present disclosure can achieve precise positioning of the tab due to the use of the baffle 23, so it is not necessary to set a tab shaping platform, which not only saves the welding cost of the tab, but also improves the welding efficiency of the tab.

[0071] Figure 3 An exemplary structural schematic diagram of a device for workpiece transfer is shown. As shown, the aforementioned device can include a receiving component 10, a workpiece transfer table 20, a first transmission component 30, a clamping component 40, a welding component, and a welding seat cleaning component 60. The aforementioned receiving component 10 and workpiece transfer table 20 have been described in detail above, and will not be described again here. Figure 3

[0072] In some embodiments, the aforementioned first transmission component 30 can include a first fixed part 31 and a first moving column 32; wherein the aforementioned first fixed part 31 can form a second through hole in the third direction, the aforementioned second through hole is in sliding connection with the aforementioned top seat and can move in the aforementioned third direction; the upper part of the aforementioned first moving column 32 is movably connected with the lower part of the aforementioned first fixed part 31 and can move in the first direction; the lower part of the aforementioned first moving column 32 is detachably connected with the aforementioned workpiece transfer table 20.

[0073] In some embodiments, the aforementioned first fixed part 31 can be driven by a driving component, such as a servo motor, which can provide a large torque for the movement of the first fixed part 31 and has a high precision, so as to accurately drive the first fixed part 31 to move in the third direction. Specifically, the aforementioned top seat can be a fixed rod parallel to the third direction. The cross-sectional shape of the second through hole of the aforementioned first fixed part 31 can match the cross-sectional shape of the aforementioned top seat, for example, the aforementioned second through hole can be a circular through hole, and the cross section thereof can be a first circle; the aforementioned top seat can be a cylinder, and the cross section thereof can be a second circle, the centers of the aforementioned first circle and the aforementioned second circle can coincide, and the radii can be equal. The inner surface of the aforementioned second through hole can be in sliding connection with the outer surface of the aforementioned top seat, and the aforementioned first fixed part 31 can move in the third direction along the aforementioned top seat.

[0074] ​In some embodiments, the inside of the first fixed part 31 can be provided with a driving part, which can be connected with the first moving column 32, so as to drive the first moving column 32 to move in the first direction. In some embodiments, the lower part of the first moving column 32 can be detachably connected with the workpiece transfer table 20, so as to drive the workpiece transfer table 20 to move in the first direction.

[0075] In some embodiments, the workpiece transfer device further comprises a clamping part 40 located on one side of the receiving part 10 in the second direction, the clamping part 40 comprising a second transmission part 41 and a clamping plate part 43; the second transmission part 41 is arranged on the mounting plane, used to drive the clamping plate part 43 to clamp the workpiece, and can drive the clamping plate part 43 to move in the second direction; the clamping plate part 43 is drivingly connected with the second transmission part 41, the clamping plate part 43 comprising a clamping opening which is opened and closed along the first direction, and the clamping opening extends along the second direction.

[0076] In some embodiments, the clamping part 40 can be located on one side of the receiving part 10 in the second direction. Further, in the second direction, the clamping part 40 can be located on the side of the receiving part 10 away from the first transmission part 30. In some embodiments, the second transmission part 41 can comprise a second fixed part and a second moving part. Further, the second transmission part 41 of the clamping part 40 can be a pneumatic cylinder, which can comprise a cylinder part and a piston rod part. Specifically, the second fixed part can be the cylinder part of the pneumatic cylinder, which can also act as the sliding guide of the piston, and can be detachably connected with the base. The second moving part can be the piston rod part of the pneumatic cylinder, the axis of the piston rod part can be parallel to the second direction. One end of the piston rod part can be movably connected with the cylinder part, and the other end of the piston rod part can be provided with a flat plate perpendicular to the second direction, the surface of the flat plate can be formed with a second groove extending along the first direction, the clamping plate part 43 can be connected with the second groove and can move along the second groove in the first direction to form clamping or releasing of the lug.

[0077] Specifically, one end of the clamping plate part 43 can be formed with a second protrusion matched with the second groove along the second direction, the second protrusion can move in the first direction within and along the second groove, so as to drive the clamping plate part 43 to move in the first direction. In some embodiments, the piston rod part can slide in the second direction after being acted by the gas pressure, so as to drive the clamping plate part 43 to slide in the second direction.

[0078] In some embodiments, the aforementioned clamping plate part 43 can include a first clamping plate 431 and a second clamping plate 432 arranged in parallel along the first direction, and the clamping opening is formed between the first clamping plate 431 and the second clamping plate 432; the aforementioned first clamping plate 431 is matched with the first groove 22, and the width of the first clamping plate 431 in the third direction can be smaller than the width of the aforementioned first groove 22, and the thickness of the first clamping plate 431 in the first direction is smaller than the depth of the aforementioned first groove 22; the aforementioned first clamping plate 431 and the second clamping plate 432 can move in the second direction, and the first clamping plate 431 is at least partially inserted into the aforementioned first groove 22 to enable the workpiece to be located in the clamping opening, thereby achieving the clamping of the workpiece by the clamping plate part.

[0079] In some embodiments, after the aforementioned tab is sucked by the workpiece transfer table 20, the aforementioned first transmission part 30 can drive the workpiece transfer table 20 to move in the third direction. In the second direction, when the symmetry axis of the first groove 22 on the workpiece transfer table 20 is moved to be in the same straight line as the symmetry axis of the clamping plate part 43, the aforementioned clamping part 40 can drive the first clamping plate 431 and the second clamping plate 432 to move in the second direction, the aforementioned first clamping plate 431 can be at least partially inserted into the aforementioned first groove 22 to enable the workpiece to be located in the clamping opening, the second clamping plate 432 can move in the first direction, the aforementioned first clamping plate 431 and the aforementioned second clamping plate 432 can cooperate to clamp the aforementioned tab, and after the aforementioned first clamping plate 431 and the aforementioned second clamping plate 432 clamp the tab, the tab can be driven to move in the second direction.

[0080] In some embodiments, the aforementioned device can further include a welding part, which is located on the side of the aforementioned receiving part 10 away from the aforementioned clamping part 40 in the second direction, and can include a welding seat 51, a welding machine body 52, a welding machine transmission rod 53, and a welding head 54; wherein the aforementioned welding seat 51 can be arranged on the second direction of the aforementioned receiving part 10 and connected with the aforementioned base; the aforementioned welding machine body 52 is arranged between the aforementioned welding seat 51 and the aforementioned receiving part 10 in the third direction and connected with the aforementioned mounting plane; the side of the aforementioned welding machine body 52 facing the third direction is formed with a third groove, which can extend along the first direction; one end of the welding machine transmission rod 53 is formed with a third protrusion along the third direction, which is movably connected with the aforementioned third groove and can move along the third groove in the first direction; the other end of the welding machine transmission rod 53 is connected with the side of the aforementioned welding head 54 facing the third direction, and the aforementioned welding head 54 is arranged opposite to the aforementioned welding seat 51 in the first direction; the side of the welding head 54 facing the welding seat 51 in the first direction can be provided with a welding needle for welding the aforementioned workpiece.

[0081] In some embodiments, the center line of the aforementioned welding seat 51 can coincide with the center line of the aforementioned clamping plate portion 43 in the second direction. And the aforementioned welding seat 51 can be arranged at a position where the top seat faces away from the clamping plate portion 43, so that the top seat can be located between the clamping plate portion 43 and the welding seat 51. After the aforementioned first clamping plate 431 and the aforementioned second clamping plate 432 clamp the tab, they can drive the aforementioned tab to move in the second direction and place the aforementioned tab on the upper surface of the aforementioned welding seat 51 to prepare for tab welding.

[0082] In some embodiments, the aforementioned welding machine body 52 can be arranged between the welding seat 51 and the aforementioned storage component 10 in the third direction, and at a position where the top seat faces away from the clamping plate portion 43. In some embodiments, the aforementioned welding machine transmission rod 53 can move between upper and lower positions along the first direction, and can also move between left and right positions along the third direction, and can be used to drive the aforementioned welding head 54 to move to a position to be welded.

[0083] In some embodiments, when the aforementioned welding component is working, the storage component 10 stores the tab to be welded, and the workpiece transfer table 20 starts to work. The first transmission component 30 can move in the third direction along the top seat to a set initial position, so that the workpiece transfer table 20 is aligned with the storage component 10 in the first direction. At this time, the first baffle 231, the second baffle 232, the third baffle 233 and the fourth baffle 234 on the workpiece transfer table 20 respectively face the four sides of the metal strip of the tab to be welded in the first direction, and then move towards the storage component 10 through the first transmission component 30 and move to the tab stored in the storage component 10. At the same time, the first through hole 21 starts to work to adsorb the tab on the mounting plane of the workpiece transfer table 20, and the first baffle 231, the second baffle 232, the third baffle 233 and the fourth baffle 234 can collectively realize positioning of the adsorbed tab. Then, in the first direction, the first transmission component 30 drives the workpiece transfer table 20 to move away from the storage component 10, and after the tab is taken out from the storage component 10, the first transmission component 30 drives the workpiece transfer table 20 to move in the third direction to a position opposite to the aforementioned clamping plate portion 43 in the second direction (i.e. in the second direction, the position where the symmetry axis of the clamping plate portion 43 and the symmetry axis of the first recess 22 coincide). At this time, the clamping plate portion 43 of the clamping component 40 can extend along the second direction, can clamp the tab on the workpiece transfer table 20, and can be transported to the welding seat 51. Finally, the aforementioned welding head 54 can weld the tab on the cell foil.

[0084] In some embodiments, the aforementioned workpiece transfer device further comprises a welding seat cleaning component 60, which is located on the side of the welding component away from the clamping component 40 in the second direction, and can comprise a cleaning brush 63 that moves in the second direction and is used to clean the welding component.

[0085] Specifically, the welding seat cleaning component 60 can further comprise a third fixing part 61 and a third transmission part 62, wherein, in the second direction, the aforementioned third fixing part 61 is arranged on the side of the aforementioned welding seat 51 away from the clamping component 40 and is connected to the mounting plane of the aforementioned base; one end of the aforementioned third transmission part 62 is movably connected to the side of the aforementioned third fixing part 61 facing the second direction and can move in the second direction; the other end of the aforementioned third transmission part 62 is connected to one end of the aforementioned cleaning brush 63; the other end of the aforementioned cleaning brush 63 is formed with one or more sawtooth parts at the lower part in the first direction, which are used to clean the upper part of the aforementioned welding seat 51.

[0086] In some embodiments, the bottom of the aforementioned cleaning brush 63 can be formed with sawtooth parts, which can be made of metal or stainless steel to provide additional strength and corrosion resistance. The aforementioned sawtooth parts can also be composed of soft bristles, which have a certain elasticity and wear resistance and can maintain good cleaning effect for a long time. The brush material can be nylon, polyester fiber, etc. The shape and size of the brush head of the cleaning brush 63 are determined according to the shape and size of the welding seat 51 to ensure that it can fully contact the surface of the welding seat 51. When the welding seat 51 is circular, the brush head of the cleaning brush 63 adopts a circular brush head; when the welding seat 51 is rectangular, the brush head of the cleaning brush 63 uses a rectangular brush head.

[0087] In some embodiments, the aforementioned third fixing part 61 can be used to provide power for the rotation or reciprocating motion of the cleaning brush 63, and the aforementioned third transmission part 62 can be a belt, a gear or a linkage mechanism, etc. Preferably, the aforementioned third transmission part 62 is a gas cylinder. When the welding seat cleaning component 60 is started, the third transmission part 62 can drive the cleaning brush 63 to move, and the sawtooth part of the reciprocating motion of the cleaning brush 63 can contact the surface of the welding seat 51, and the sawtooth part can remove the impurities such as metal debris on the surface of the welding seat 51 by using the friction force of the sawtooth part. Through the arrangement of the aforementioned cleaning brush 63, the situation of welding skew caused by the uneven surface of the welding seat 51 during welding can be reduced.

[0088] While several embodiments of the disclosure have been shown and described herein, it is to be understood that the embodiments are merely exemplary. Numerous changes, substitutions and equivalents can occur to those skilled in the art without departing from the spirit and scope of the disclosure. It should be understood that various alternatives to the embodiments of the disclosure described herein can be employed in practicing the disclosure. It is intended that the following claims define the scope of the disclosure and that methods equivalent to those shown and described herein can be utilized without departing from the spirit and scope of the disclosure.

Claims

1. A workpiece transfer device, characterized by, The workpiece transfer device has a mounting plane and comprises a receiving component (10), a workpiece transfer table (20), and a first transmission component (30); wherein The receiving component (10) is arranged on the mounting plane and used for receiving the workpiece; The workpiece transfer table (20) is arranged on a side of the receiving component (10) away from the mounting plane in a first direction; one end of the workpiece transfer table (20) towards the receiving component (10) comprises a transfer plane parallel to the mounting plane, and a first through hole (21) and a first groove (22) are arranged on the transfer plane in a spaced manner; the first groove (22) extends along a second direction; a plurality of baffles (23) are arranged on the transfer plane of the workpiece transfer table (20) in a circumferential direction, and the plurality of baffles (23) protrude from the transfer plane in a protruding direction parallel to the first direction and towards the mounting plane; The first transmission component (30) is drivingly connected to the workpiece transfer table (20) to move the workpiece transfer table (20) along the first direction and / or parallel to the mounting plane to approach or move away from the receiving component (10); The first direction is perpendicular to the mounting plane, and the second direction is parallel to the mounting plane.

2. The workpiece transfer device according to claim 1, wherein The receiving component (10) has a receiving cavity and a taking-and-placing opening, and comprises a receiving flat plate (11) and at least one guide column (12); the receiving flat plate (11) is arranged parallel to the mounting plane; one end of the guide column (12) is connected to the receiving flat plate (11), and a plurality of guide columns (12) are connected to the receiving flat plate (11) to form the receiving cavity; the other end of the guide column (12) extends away from the receiving flat plate (11) along the first direction to form the taking-and-placing opening.

3. The workpiece transfer device according to claim 2, wherein The guide column (12) comprises a first guide plate and a second guide plate with width extension directions perpendicular to each other; one of the two has a width extension direction perpendicular to the second direction, and the other has a width extension direction perpendicular to a third direction; the first guide plate and the second guide plate are both connected to the receiving flat plate (11) to form the receiving cavity and limit the workpiece; the third direction is parallel to the mounting plane and perpendicular to the first direction and the second direction.

4. The workpiece transfer apparatus of claim 3, wherein, The first through hole (21) is arranged at a central position of the transfer plane, and the first groove (22) is arranged on one side of the first through hole (21) in the third direction and penetrates through the transfer plane along the second direction.

5. The workpiece transfer apparatus of claim 3, wherein, The workpiece transfer device comprises a base and a cross beam arranged opposite to each other along the first direction; the base comprises the mounting plane; the cross beam is arranged on the base and extends along the third direction; the workpiece transfer table (20) is movably connected to the cross beam; and the first transmission component (30) can drive the workpiece transfer table (20) to move along the cross beam.

6. The workpiece transfer apparatus of claim 3, wherein, The baffle plate (23) comprises a first baffle plate (231) and a third baffle plate (233) symmetrically arranged along the third direction, for limiting the workpiece in the third direction; and / or, a second baffle plate (232) and a fourth baffle plate (234) symmetrically arranged along the second direction, for limiting the workpiece in the second direction, and the second baffle plate (232) and the fourth baffle plate (234) are arranged on one side of the first groove (22) in the third direction.

7. The workpiece transfer apparatus of claim 3, wherein The workpiece transfer device further comprises a clamping component (40) arranged on one side of the receiving component (10) in the second direction, the clamping component (40) comprising a second transmission part (41) and a clamping plate part (43); The second transmission part (41) is arranged on the mounting plane, for driving the clamping plate part (43) to clamp the workpiece, and enabling the clamping plate part (43) to move along the second direction; The clamping plate part (43) is drivingly connected with the second transmission part (41), and the clamping plate part (43) comprises a clamping opening which is opened and closed along the first direction, and the clamping opening extends along the second direction.

8. The workpiece transfer apparatus of claim 7, wherein, The clamping plate part (43) comprises a first clamping plate (431) and a second clamping plate (432) arranged in parallel along the first direction, and the clamping opening is formed between the first clamping plate (431) and the second clamping plate (432); The first clamping plate (431) is matched with the first groove (22), along the third direction, the width of the first clamping plate (431) is smaller than the width of the first groove (22), along the first direction, the thickness of the first clamping plate (431) is smaller than the depth of the first groove (22), the first clamping plate (431) and the second clamping plate (432) can move along the second direction, and the first clamping plate (431) is at least partially inserted into the first groove (22), so that the workpiece is located in the clamping opening, thereby realizing the clamping of the workpiece by the clamping plate part.

9. The workpiece transfer apparatus of claim 7, wherein, The workpiece transfer device further comprises a welding component arranged on the side of the receiving component (10) in the second direction away from the clamping component (40), comprising a welding seat (51) and a welding head (54) oppositely arranged along the first direction, for welding the workpiece.

10. The workpiece transfer apparatus of claim 9, wherein, The device further comprises a welding seat cleaning component (60) arranged on the side of the welding component in the second direction away from the clamping component (40), comprising a cleaning brush (63) moving along the second direction, for cleaning the welding component.

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