Sealing nail positioning device

Abstract

The utility model discloses a sealing nail positioning device, the sealing nail positioning device is provided with a nail supply station and a to-be-welded station, the nail supply station is provided with a sealing nail, the sealing nail positioning device comprises a battery cell carrier, a nail feeding mechanism, a first visual positioning mechanism and a second visual positioning mechanism, the battery cell carrier is used for carrying a battery cell to the to-be-welded station, the nail feeding mechanism is used for feeding the sealing nail to the to-be-welded station, and the second visual positioning mechanism is used for feeding the sealing nail to the to-be-welded station. The nail feeding mechanism is provided with a picking part, the picking part is used for picking the sealing nails at the nail supply station, the first visual positioning mechanism is located between the nail feeding mechanism and the station to be welded and used for collecting the first positions, relative to the picking part, of the sealing nails, and the second visual positioning mechanism is located above the station to be welded and used for collecting the second positions of liquid injection holes in the battery cells; and the nail feeding mechanism is used for moving the sealing nail from the first visual positioning mechanism to the to-be-welded station according to the first position and the second position. By means of the arrangement, the problem that position deviation is prone to occurring in the nail feeding process of the sealing nail is solved, and the positioning precision of the sealing nail and the yield in welding work are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core manufacturing and processing, in particular to a sealing nail positioning device. Background Art

[0002] The sealing pin is sucked by the manipulator and then put into the injection hole of the battery cell. The existing mechanism only takes a picture of the injection hole of the battery cell, controls the suction head to put the sealing pin into the injection hole according to the position of the injection hole and the suction head, and does not locate the position of the sealing pin on the suction head after sucking the sealing pin.

[0003] However, since the sealing pins are very small, once there is a slight deviation in the placement of the pins, problems such as welding leaks and cold welds will occur, affecting the airtightness of the battery, significantly increasing the product defective rate of the sealing pin welding equipment, and wasting a large amount of semi-finished products. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing nail positioning device, which aims to solve the problem that the existing mechanism only takes pictures to position the battery core injection hole, resulting in position deviation of the sealing nail.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a sealing nail positioning device, which has a nail supply station and a welding station, and the nail supply station is provided with a sealing nail, and the sealing nail positioning device includes:

[0006] A battery cell carrier, used to carry the battery cells to the welding station;

[0007] The nail feeding mechanism has a picking portion, and the picking portion is used to pick up the sealing nails from the nail supply station;

[0008] A first visual positioning mechanism is located between the nailing mechanism and the welding station, and is used to collect a first position of the sealing nail relative to the picking portion; and

[0009] A second visual positioning mechanism is located above the welding station and is used to collect the second position of the liquid injection hole on the battery cell;

[0010] Wherein, the nailing mechanism is used to move the sealing nail from the first visual positioning mechanism to the welding station according to the first position and the second position.

[0011] Optionally, the nailing mechanism further includes:

[0012] A first slide rail is located above the nail supply station and the waiting welding station and extends horizontally; and

[0013] A second slide rail is slidably disposed on the first slide rail and is extended in a horizontal direction, wherein an extension direction of the second slide rail intersects with an extension direction of the first slide rail;

[0014] Wherein, the picking portion is slidably arranged on the second slide rail so as to be able to move from the nail supply station to the waiting welding station.

[0015] Optionally, the pickup portion comprises:

[0016] a base, movably disposed on the second slide rail; and

[0017] The vacuum adsorption part is arranged at the lower end of the base and can move in the up and down directions. The vacuum adsorption part is used to adsorb the sealing nail.

[0018] Optionally, the second visual positioning mechanism is disposed on the first slide rail and can move horizontally.

[0019] Optionally, a plurality of the picking-up parts are provided, and the plurality of the picking-up parts are arranged at intervals.

[0020] Optionally, the sealing nail positioning device further includes a nail feeding mechanism, and the nail feeding mechanism includes:

[0021] A carrier plate is located on the nail supply station, and a plurality of spaced accommodating grooves are concavely formed on the upper end surface of the carrier plate, one end of the plurality of accommodating grooves are interconnected, and the other end of the plurality of accommodating grooves are through-set, and each of the accommodating grooves is used to accommodate a plurality of sealing nails; and

[0022] A vibration part is provided to connect the open ends of the plurality of receiving grooves, and the vibration part can drive the bearing plate to move in the up-down direction, and the vibration part is used to supply the sealing nail from the open end of the receiving groove into the receiving groove.

[0023] Optionally, the battery cell carrier includes a plurality of carrying fixtures, which are arranged at intervals and are all located at the workstation to be welded, and each of the carrying fixtures is used to carry one battery cell.

[0024] Optionally, a first supplementary light source is further provided above the first visual positioning mechanism, and the first supplementary light source is used to illuminate the sealing nails on the picking part; and / or,

[0025] A second supplementary light source is also provided below the second visual positioning mechanism, and the second supplementary light source is used to illuminate the liquid injection hole of the battery cell.

[0026] Optionally, the first supplementary light source is arranged in a ring shape to avoid the field of view of the first visual positioning mechanism; and / or,

[0027] The second supplementary light source is arranged in a ring shape to avoid the field of view of the second visual positioning mechanism.

[0028] Optionally, the first visual positioning mechanism is provided in plurality, and the plurality of first visual positioning mechanisms are arranged at intervals; and / or,

[0029] There are multiple second visual positioning mechanisms, and the multiple second visual positioning mechanisms are arranged at intervals.

[0030] In the technical solution provided by the utility model, first, the relative positions of the nail supply station and the station to be welded are determined, then the battery cell carrier transports the battery cell to the station to be welded, the second visual positioning mechanism collects the second position of the battery cell injection hole to determine the position deviation value between the second position and the station to be welded, and then, the sealing nail is transported to the nail supply station, the picking part moves to the nail supply station to pick up the sealing nail at the nail supply station, the picking part moves again to move above the first visual positioning mechanism, and the first visual positioning mechanism is used to pick up the sealing nail at the nail supply station. The visual positioning mechanism collects the first position of the sealing nail relative to the picking part to determine the position deviation value of the sealing nail relative to the picking part. After the first visual positioning mechanism completes the collection, the picking part drives the sealing nail to move to the welding station. At this time, the sealing nail positioning device determines the actual nailing position of the sealing nail according to the first position, the second position and the relative position of the nail supply station and the welding station, adjusts the position of the picking part so that the sealing nail is at the actual nailing position, and the picking part releases the match to accurately place the sealing nail at the battery cell injection hole. In this way, the first position and the second position are collected respectively by the first visual positioning mechanism and the second visual positioning mechanism to determine the specific position of the sealing nail on the picking part and the specific position of the battery cell injection hole, thereby realizing a dual positioning function, solving the problem of position deviation of the sealing nail during the nailing process, improving the positioning accuracy of the sealing nail, and the yield rate in subsequent welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0032] Figure 1 A three-dimensional schematic diagram of an embodiment of a sealing nail positioning device provided by the utility model;

[0033] Figure 2 for Figure 1A three-dimensional schematic diagram of the battery cell carrier and the nailing mechanism;

[0034] Figure 3 for Figure 1 A three-dimensional schematic diagram of the second visual positioning mechanism in FIG.

[0035] Description of Figure Numbers:

[0036] Label name Label name 100 Sealing nail positioning device 23 Second slide rail 1 Battery Cell Carrier 3 The first visual positioning mechanism 11 Load-bearing tooling 31 The first fill light source 2 Nail mechanism 4 Second visual positioning mechanism 21 Pick up department 41 Second fill light source 211 Base 5 Nail feeding mechanism 212 Vacuum adsorption unit 51 Loading plate 22 First slide rail 52 Vibration Department

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 utility model.

[0041] At present, the commonly used sealing pin positioning device only takes a picture of the battery cell injection hole, and controls the suction head to put the sealing pin into the injection hole according to the position of the injection hole and the suction head, but does not locate the position of the sealing pin on the suction head after the sealing pin is sucked.

[0042] However, since the sealing pins are very small, once there is a slight deviation in the placement of the pins, problems such as welding leaks and cold welds will occur, affecting the airtightness of the battery and significantly increasing the product defective rate of the sealing pin welding equipment, which is a high problem.

[0043] In order to solve the above problems, the utility model provides a sealing nail positioning device 100. Figures 1 to 3 This is a specific embodiment of the sealing nail positioning device provided by the utility model.

[0044] See also Figures 1 to 3 The sealing nail positioning device 100 has a nail supply station and a welding station, and the nail supply station is provided with a sealing nail. The sealing nail positioning device 100 includes a battery cell carrier 1, a nailing mechanism 2, a first visual positioning mechanism 3 and a second visual positioning mechanism 4. The battery cell carrier 1 is used to transport the battery cell to the welding station, and the nailing mechanism 2 has a picking portion 21, and the picking portion 21 is used to pick up the sealing nail at the nail supply station. The first visual positioning mechanism 3 is located between the nailing mechanism 2 and the welding station, and is used to collect the first position of the sealing nail relative to the picking portion 21. The second visual positioning mechanism 4 is located above the welding station, and is used to collect the second position of the liquid injection hole on the battery cell. The nailing mechanism 2 is used to move the sealing nail from the first visual positioning mechanism 3 to the welding station according to the first position and the second position.

[0045] In the technical solution provided by the utility model, first, the relative positions of the nail supply station and the station to be welded are determined, then, the battery cell carrier 1 transports the battery cell to the station to be welded, the second visual positioning mechanism 4 collects the second position of the battery cell injection hole to determine the position deviation value between the second position and the station to be welded, and then, the sealing nail is transported to the nail supply station, the picking part 21 moves to the nail supply station to pick up the sealing nail at the nail supply station, the picking part 21 moves again to move to the top of the first visual positioning mechanism 3, and the first visual positioning mechanism The first visual positioning mechanism 3 collects the first position of the sealing nail relative to the picking part 21 to determine the position deviation value of the sealing nail relative to the picking part 21. After the first visual positioning mechanism 3 completes the collection, the picking part 21 drives the sealing nail to move to the welding station. At this time, the sealing nail positioning device 100 determines the actual nailing position of the sealing nail according to the first position, the second position and the relative position of the nail supply station and the welding station, adjusts the position of the picking part 21 so that the sealing nail is at the actual nailing position, and the picking part 21 is released to accurately place the sealing nail at the battery cell injection hole. In this way, the first visual positioning mechanism 3 and the second visual positioning mechanism 4 respectively collect the first position and the second position to determine the specific position of the sealing nail on the picking part 21 and the specific position of the battery cell injection hole, thereby realizing a dual positioning function, solving the problem of position deviation of the sealing nail during the nailing process, and improving the positioning accuracy of the sealing nail, as well as the yield rate in subsequent welding work.

[0046] For example, in one embodiment of the present invention, a coordinate system may be established to represent the first position, the second position, and the relative positions of the nail supply station and the station to be welded.

[0047] Specifically, the relative position of the nail supply station and the welding station is (Xa, Ya), the first position is (Xb, Yb), and the second position is (Xc, Yc).

[0048] It should be noted that Xb represents the position offset of the sealing pin in the X-axis direction relative to the picking part 21, and Yb represents the position offset of the sealing pin in the Y-axis direction relative to the picking part 21; Xc represents the position offset of the battery cell injection hole in the X-axis direction relative to the welding station, and Yc represents the position offset of the battery cell injection hole in the Y-axis direction relative to the welding station.

[0049] By collecting the position offset of the sealing pin and the battery cell injection hole, and combining it with the relative position of the pin supply station and the welding station, the actual pin position (X, Y) can be obtained, where X=Xa+Xb+Xc; Y=Ya+Yb+Yc.

[0050] Furthermore, the nailing mechanism 2 also includes a first slide rail 22 and a second slide rail 23. The first slide rail 22 is located above the nail supply station and the welding station and is extended horizontally. The second slide rail 23 is slidably arranged on the first slide rail 22 and is extended horizontally. The extension direction of the second slide rail 23 intersects with the extension direction of the first slide rail 22. The picking part 21 is slidably arranged on the second slide rail 23 so as to be able to move from the nail supply station to the welding station. It can be understood that the first slide rail 22 and the second slide rail 23 provide movement space for the picking part 21. For example, in one embodiment of the present utility model, the first slide rail 22 is extended along the X-axis direction, and the second slide rail 23 is extended along the Y-axis direction. In this way, the second slide rail 23 slides on the first slide rail 22, and the picking part 21 slides on the second slide rail 23, so that the picking part 21 can move freely in the horizontal direction, ensuring the movement range of the picking part 21, so that the user can determine the specific positions of the battery carrier 1, the first visual positioning mechanism 3, and the second visual positioning mechanism according to their own needs, providing sufficient space for the specific layout of the sealing nail positioning device 100.

[0051] It should be noted that the present invention does not limit the specific extension direction of the first slide rail 22 and the second slide rail 23. In another embodiment of the present invention, the first slide rail 22 can be extended along the Y-axis direction, and the second slide rail 23 can be extended along the X-axis direction. During the actual setting, it can be selected according to the needs.

[0052] In addition, the utility model also does not limit the angle between the first slide rail 22 and the second slide rail 23. For example, when the first slide rail 22 and the second slide rail 23 are respectively extended along the X-axis direction and extended along the Y-axis direction, the angle between the first slide rail 22 and the second slide rail 23 is set to 90°; in other embodiments, the angle between the first slide rail 22 and the second slide rail 23 can also be set to 45°, 135° or other angles. It is only necessary to ensure that the extension direction of the first slide rail 22 and the extension direction of the second slide rail 23 intersect, so that the two slide rails are not in a colinear state or a parallel state, so that the picking part 21 has at least two active directions to ensure its range of activity.

[0053] Furthermore, in order to prevent the picking part 21 from interfering with the sealing nails on the nail supply station when it moves to the nail supply station, thereby affecting the normal progress of the picking work, the picking part 21 includes a base 211 and a vacuum adsorption part 212, wherein the base 211 is movably arranged on the second slide rail 23, and the vacuum adsorption part 212 is arranged at the lower end of the base 211 and can move in the up and down directions, and the vacuum adsorption part 212 is used to adsorb the sealing nails. In this way, when the base 211 drives the vacuum adsorption part 212 to move to the nail supply station, the vacuum adsorption part 212 is located above the sealing nail. At this time, the vacuum adsorption part 212 moves downward to abut against the sealing nail, and the vacuum adsorption part 212 works to generate negative pressure between it and the sealing nail, so that the vacuum adsorption part 212 adsorbs the sealing nail, and the vacuum adsorption part 212 moves upward again to complete the picking work of the sealing nail.

[0054] Of course, the picking-up portion 21 can also be set to other structures to pick up the sealing nails. For example, in one embodiment of the present utility model, the picking-up portion 21 includes the base 211 and the magnetic adsorption portion. The magnetic adsorption portion is arranged at the lower end of the base 211. When the picking-up portion 21 needs to pick up the sealing nails, the base 211 drives the magnetic adsorption portion to move to the nail feeding station. The magnetic adsorption portion is located above the sealing nails. At this time, the magnetic adsorption portion works to adsorb the sealing nails at the feeding station onto the magnetic adsorption portion to complete the picking up of the sealing nails. With such a setting, the picking up of the sealing nails can also be achieved, and the user can set whether the magnetic adsorption portion needs to abut against the sealing nails according to the magnetic force of the magnetic adsorption portion.

[0055] In other embodiments of the present invention, the picking portion 21 may also be configured as a gripping portion or other structural forms, and the present invention does not impose any limitation on this.

[0056] It should also be noted that in order to improve the working efficiency of the sealing nail positioning device 100, a plurality of the picking parts 21 are provided, and the plurality of the picking parts 21 are arranged at intervals. With such an arrangement, the plurality of the picking parts 21 can pick up a plurality of sealing nails at the same time, so as to perform the positioning and nailing work of the plurality of sealing nails at the same time, thereby improving the working efficiency of the sealing nail positioning device 100.

[0057] Based on the above content, when the first visual positioning mechanism 3 collects the first position, in order to ensure the accuracy of the first position, the first visual positioning mechanism 3 is only used to collect one first position in turn. Therefore, when multiple sealing pins are performing positioning work at the same time, the first visual positioning mechanism 3 is also provided with multiple first visual positioning mechanisms 3. The multiple first visual positioning mechanisms 3 respectively collect the first positions of the corresponding sealing pins relative to the picking part 21, so as to improve the efficiency of the sealing pin positioning work.

[0058] Similarly, in order to enable multiple sealing nails to complete the nailing work at the same time, in an embodiment of the utility model, the battery cell carrier 1 includes multiple carrying tools 11, and the multiple carrying tools 11 are arranged at intervals and are all located at the welding station. Each of the carrying tools 11 is used to carry a battery cell. When the multiple picking parts 21 drive the sealing nail to move to the welding station, each of the picking parts 21 corresponds to one carrying tool 11. At this time, the multiple picking parts 21 can place multiple sealing nails in multiple battery cell injection holes at the same time to complete the nailing work of multiple sealing nails at the same time.

[0059] Of course, when the battery cell carrier 1 includes a plurality of the carrying tooling 11, when the second visual positioning mechanism 4 collects the first position, in order to ensure the accuracy of the second position, the second visual positioning mechanism 4 is also provided with a plurality of second visual positioning mechanisms 4, and the plurality of second visual positioning mechanisms 4 are arranged at intervals. In this arrangement, each second visual positioning mechanism 4 corresponds to only one battery cell injection hole to collect the corresponding second position.

[0060] Furthermore, since the second visual positioning mechanism 4 is located above the welding station, in order to avoid interference between the picking part 21 and the second visual positioning mechanism 4 when the picking part 21 moves to the welding station, in one embodiment of the utility model, the second visual positioning mechanism 4 is located above the picking part 21. When the picking part 21 moves to the welding station, the picking part 21 is located between the second visual positioning mechanism 4 and the battery cell carrier 1. In this way, the picking part 21 will not interfere with the second visual positioning mechanism 4.

[0061] In another embodiment of the present invention, the second visual positioning mechanism 4 is disposed on the first slide rail 22 and can move horizontally. In this way, when the second visual positioning mechanism 4 needs to collect the second position, the second visual positioning mechanism 4 moves to the top of the battery carrier 1 to collect the second position. After the collection is completed, the second visual positioning mechanism 4 moves again to leave the top of the battery carrier 1 to avoid the picking part 21 from interfering with the welding station when it moves to the welding station.

[0062] In addition, in the process of the first visual positioning mechanism 3 collecting the first position, in order to improve the accuracy of the first position collected by the first visual positioning mechanism 3, in an embodiment of the utility model, a first supplementary light source 31 is also provided above the first visual positioning mechanism 3. The first supplementary light source 31 is used to illuminate the sealing nails on the picking part 21. The setting of the first supplementary light source 31 can provide lighting for the first visual positioning mechanism 3 to improve the accuracy of the collection work performed by the first visual positioning mechanism 3.

[0063] Similarly, in order to improve the accuracy of the second position collected by the second visual positioning mechanism 4, a second supplementary light source 41 is also provided under the second visual positioning mechanism 4. The second supplementary light source 41 is used to illuminate the liquid injection hole of the battery cell. The setting of the second supplementary light source 41 can provide lighting for the second visual positioning mechanism 4 to improve the accuracy of the collection work of the second visual positioning mechanism 4.

[0064] It should be noted that the present invention does not limit the specific structural forms of the first supplementary light source 31 and the second supplementary light source 41. For example, in one embodiment of the present invention, the first supplementary light source 31 and the second supplementary light source 41 are both configured as circular light sources, and respectively avoid the fields of view of the first visual positioning mechanism 3 and the second visual positioning mechanism 4, so as to respectively illuminate the sealing nails and the battery cell filling holes.

[0065] In another embodiment of the utility model, the first supplementary light source 31 and the second supplementary light source 41 are both arranged in a ring shape. With this arrangement, the ring holes in the middle of the first supplementary light source 31 and the second supplementary light source 41 can allow the fields of view of the first visual positioning mechanism 3 and the second visual positioning mechanism 4 to pass through, respectively, so as to avoid blocking the fields of view of the first visual positioning mechanism 3 and the second visual positioning mechanism 4 and affecting the normal acquisition work of the first visual positioning mechanism 3 and the second visual positioning mechanism 4.

[0066] In other embodiments of the present invention, the first supplementary light source 31 and the second supplementary light source 41 may also be configured as other structural forms, which can be selected according to actual needs during actual configuration.

[0067] Of course, in the same embodiment, the specific structures of the first supplementary light source 31 and the second supplementary light source 41 may also be different from each other, and the present invention does not impose any limitation on this.

[0068] The sealing nail positioning device 100 also includes a nail feeding mechanism 5, which includes a carrier plate 51 and a vibration part 52. The carrier plate 51 is located on the nail feeding station. The upper end surface of the carrier plate 51 is concavely provided with a plurality of spaced receiving grooves, one end of the plurality of receiving grooves is connected to each other, and the other end is through-set. Each of the receiving grooves is used to accommodate a plurality of sealing nails. The vibration part 52 is connected to the open ends of the plurality of receiving grooves. The vibration part 52 can drive the carrier plate 51 to move in the up-down direction. The vibration part 52 is used to feed the sealing nail from the open end of the receiving groove into the receiving groove. In this way, the vibration part 52 vibrates in the up-down direction to feed the sealing nail from the open end of the receiving groove into the receiving groove until the sealing nail moves to the connected end of the receiving groove for pickup by the pickup part 21.

[0069] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A sealing nail positioning device, characterized in that: The sealing nail positioning device comprises a nail supplying station and a welding station, the nail supplying station is provided with a sealing nail, and the sealing nail positioning device comprises: A battery cell carrier, used to carry the battery cells to the welding station; The nail feeding mechanism has a picking portion, and the picking portion is used to pick up the sealing nails from the nail supply station; A first visual positioning mechanism is located between the nailing mechanism and the welding station, and is used to collect a first position of the sealing nail relative to the picking portion; and A second visual positioning mechanism is located above the welding station and is used to collect the second position of the liquid injection hole on the battery cell; Wherein, the nailing mechanism is used to move the sealing nail from the first visual positioning mechanism to the welding station according to the first position and the second position.

2. The sealing nail positioning device according to claim 1, characterized in that: The nailing mechanism also includes: A first slide rail is located above the nail supply station and the waiting welding station and extends horizontally; and A second slide rail is slidably disposed on the first slide rail and is extended in a horizontal direction, wherein an extension direction of the second slide rail intersects with an extension direction of the first slide rail; Wherein, the picking portion is slidably arranged on the second slide rail so as to be able to move from the nail supply station to the waiting welding station.

3. The sealing nail positioning device according to claim 2, characterized in that: The pickup portion comprises: a base, movably disposed on the second slide rail; and The vacuum adsorption part is arranged at the lower end of the base and can move in the up and down directions. The vacuum adsorption part is used to adsorb the sealing nail.

4. The sealing nail positioning device according to claim 2, characterized in that: The second visual positioning mechanism is arranged on the first slide rail and can move in the horizontal direction.

5. The sealing nail positioning device according to claim 1, characterized in that: The picking-up parts are provided in plurality, and the picking-up parts are arranged at intervals.

6. The sealing nail positioning device according to claim 1, characterized in that: The sealing nail positioning device also includes a nail supply mechanism, and the nail supply mechanism includes: A carrier plate is located on the nail supply station, and a plurality of spaced accommodating grooves are concavely formed on the upper end surface of the carrier plate, one end of the plurality of accommodating grooves are interconnected, and the other end of the plurality of accommodating grooves are through-set, and each of the accommodating grooves is used to accommodate a plurality of sealing nails; and A vibration part is provided to connect the open ends of the plurality of receiving grooves, and the vibration part can drive the bearing plate to move in the up-down direction, and the vibration part is used to supply the sealing nail from the open end of the receiving groove into the receiving groove.

7. The sealing nail positioning device according to claim 1, characterized in that: The battery cell carrier includes a plurality of carrying fixtures, which are arranged at intervals and are all located at the workstation to be welded, and each of the carrying fixtures is used to carry one battery cell.

8. The sealing nail positioning device according to claim 1, characterized in that: A first supplementary light source is further provided above the first visual positioning mechanism, and the first supplementary light source is used to illuminate the sealing nails on the picking part; and / or, A second supplementary light source is also provided below the second visual positioning mechanism, and the second supplementary light source is used to illuminate the liquid injection hole of the battery cell.

9. The sealing nail positioning device according to claim 8, characterized in that: The first supplementary light source is arranged in a ring shape to avoid the field of view of the first visual positioning mechanism; and / or, The second supplementary light source is arranged in a ring shape to avoid the field of view of the second visual positioning mechanism.

10. The sealing nail positioning device according to claim 1, characterized in that: The first visual positioning mechanism is provided in plurality, and the plurality of the first visual positioning mechanisms are arranged at intervals; and / or, There are multiple second visual positioning mechanisms, and the multiple second visual positioning mechanisms are arranged at intervals.

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